diff --git a/libs/ui/CMakeLists.txt b/libs/ui/CMakeLists.txt
index 7aba3cb6c5..7a31807f2b 100644
--- a/libs/ui/CMakeLists.txt
+++ b/libs/ui/CMakeLists.txt
@@ -1,607 +1,610 @@
 include_directories(
     ${CMAKE_CURRENT_SOURCE_DIR}/qtlockedfile
 )
 
 include_directories(SYSTEM
     ${EIGEN3_INCLUDE_DIR}
     ${OCIO_INCLUDE_DIR}
 )
 
 add_subdirectory( tests )
 
 if (APPLE)
     find_library(FOUNDATION_LIBRARY Foundation)
     find_library(APPKIT_LIBRARY AppKit)
 endif ()
 
 set(kritaui_LIB_SRCS
     canvas/kis_canvas_widget_base.cpp
     canvas/kis_canvas2.cpp
     canvas/kis_canvas_updates_compressor.cpp
     canvas/kis_canvas_controller.cpp
     canvas/kis_paintop_transformation_connector.cpp
     canvas/kis_display_color_converter.cpp
     canvas/kis_display_filter.cpp
     canvas/kis_exposure_gamma_correction_interface.cpp
     canvas/kis_tool_proxy.cpp
     canvas/kis_canvas_decoration.cc
     canvas/kis_coordinates_converter.cpp
     canvas/kis_grid_manager.cpp
     canvas/kis_grid_decoration.cpp
     canvas/kis_grid_config.cpp
     canvas/kis_prescaled_projection.cpp
     canvas/kis_qpainter_canvas.cpp
     canvas/kis_projection_backend.cpp
     canvas/kis_update_info.cpp
     canvas/kis_image_patch.cpp
     canvas/kis_image_pyramid.cpp
     canvas/kis_infinity_manager.cpp
     canvas/kis_change_guides_command.cpp
     canvas/kis_guides_decoration.cpp
     canvas/kis_guides_manager.cpp
     canvas/kis_guides_config.cpp
     canvas/kis_snap_config.cpp
     canvas/kis_snap_line_strategy.cpp
     canvas/KisSnapPointStrategy.cpp
 	canvas/KisMirrorAxisConfig.cpp
 	dialogs/kis_about_application.cpp
     dialogs/kis_dlg_adj_layer_props.cc
     dialogs/kis_dlg_adjustment_layer.cc
     dialogs/kis_dlg_filter.cpp
     dialogs/kis_dlg_generator_layer.cpp
     dialogs/kis_dlg_file_layer.cpp
     dialogs/kis_dlg_filter.cpp
     dialogs/kis_dlg_stroke_selection_properties.cpp
     dialogs/kis_dlg_image_properties.cc
     dialogs/kis_dlg_layer_properties.cc
     dialogs/kis_dlg_preferences.cc
     dialogs/slider_and_spin_box_sync.cpp
     dialogs/kis_dlg_blacklist_cleanup.cpp
     dialogs/kis_dlg_layer_style.cpp
     dialogs/kis_dlg_png_import.cpp
     dialogs/kis_dlg_import_image_sequence.cpp
     dialogs/kis_delayed_save_dialog.cpp
     dialogs/KisSessionManagerDialog.cpp
     dialogs/KisNewWindowLayoutDialog.cpp
+    dialogs/KisDlgChangeCloneSource.cpp
     flake/kis_node_dummies_graph.cpp
     flake/kis_dummies_facade_base.cpp
     flake/kis_dummies_facade.cpp
     flake/kis_node_shapes_graph.cpp
     flake/kis_node_shape.cpp
     flake/kis_shape_controller.cpp
     flake/kis_shape_layer.cc
     flake/kis_shape_layer_canvas.cpp
     flake/kis_shape_selection.cpp
     flake/kis_shape_selection_canvas.cpp
     flake/kis_shape_selection_model.cpp
     flake/kis_take_all_shapes_command.cpp
     brushhud/kis_uniform_paintop_property_widget.cpp
     brushhud/kis_brush_hud.cpp
     brushhud/kis_round_hud_button.cpp
     brushhud/kis_dlg_brush_hud_config.cpp
     brushhud/kis_brush_hud_properties_list.cpp
     brushhud/kis_brush_hud_properties_config.cpp
 
     kis_aspect_ratio_locker.cpp
     kis_autogradient.cc
     kis_bookmarked_configurations_editor.cc
     kis_bookmarked_configurations_model.cc
     kis_bookmarked_filter_configurations_model.cc
     KisPaintopPropertiesBase.cpp
     kis_canvas_resource_provider.cpp
     kis_derived_resources.cpp
     kis_categories_mapper.cpp
     kis_categorized_list_model.cpp
     kis_categorized_item_delegate.cpp
     kis_clipboard.cc
     kis_config.cc
     KisOcioConfiguration.cpp
     kis_control_frame.cpp
     kis_composite_ops_model.cc
     kis_paint_ops_model.cpp
     kis_cursor.cc
     kis_cursor_cache.cpp
     kis_custom_pattern.cc
     kis_file_layer.cpp
     kis_change_file_layer_command.h
     kis_safe_document_loader.cpp
     kis_splash_screen.cpp
     kis_filter_manager.cc
     kis_filters_model.cc
     kis_histogram_view.cc
     KisImageBarrierLockerWithFeedback.cpp
     kis_image_manager.cc
     kis_image_view_converter.cpp
     kis_import_catcher.cc
     kis_layer_manager.cc
     kis_mask_manager.cc
     kis_mimedata.cpp
     kis_node_commands_adapter.cpp
     kis_node_manager.cpp
     kis_node_juggler_compressed.cpp
     kis_node_selection_adapter.cpp
     kis_node_insertion_adapter.cpp
     KisNodeDisplayModeAdapter.cpp
     kis_node_model.cpp
     kis_node_filter_proxy_model.cpp
     kis_model_index_converter_base.cpp
     kis_model_index_converter.cpp
     kis_model_index_converter_show_all.cpp
     kis_painting_assistant.cc
     kis_painting_assistants_decoration.cpp
     KisDecorationsManager.cpp
     kis_paintop_box.cc
     kis_paintop_option.cpp
     kis_paintop_options_model.cpp
     kis_paintop_settings_widget.cpp
     kis_popup_palette.cpp
     kis_png_converter.cpp
     kis_preference_set_registry.cpp
     KisResourceServerProvider.cpp
     KisResourceBundleServerProvider.cpp
     KisSelectedShapesProxy.cpp
     kis_selection_decoration.cc
     kis_selection_manager.cc
     KisSelectionActionsAdapter.cpp
     kis_statusbar.cc
     kis_zoom_manager.cc
     kis_favorite_resource_manager.cpp
     kis_workspace_resource.cpp
     kis_action.cpp
     kis_action_manager.cpp
     KisActionPlugin.cpp
     kis_canvas_controls_manager.cpp
     kis_tooltip_manager.cpp
     kis_multinode_property.cpp
     kis_stopgradient_editor.cpp
     KisWelcomePageWidget.cpp
+    KisChangeCloneLayersCommand.cpp
 
     kisexiv2/kis_exif_io.cpp
     kisexiv2/kis_exiv2.cpp
     kisexiv2/kis_iptc_io.cpp
     kisexiv2/kis_xmp_io.cpp
 
     opengl/kis_opengl.cpp
     opengl/kis_opengl_canvas2.cpp
     opengl/kis_opengl_canvas_debugger.cpp
     opengl/kis_opengl_image_textures.cpp
     opengl/kis_texture_tile.cpp
     opengl/kis_opengl_shader_loader.cpp
     opengl/kis_texture_tile_info_pool.cpp
     opengl/KisOpenGLUpdateInfoBuilder.cpp
     opengl/KisOpenGLModeProber.cpp
     opengl/KisScreenInformationAdapter.cpp
     kis_fps_decoration.cpp
 
     tool/KisToolChangesTracker.cpp
     tool/KisToolChangesTrackerData.cpp
     tool/kis_selection_tool_helper.cpp
     tool/kis_selection_tool_config_widget_helper.cpp
     tool/kis_rectangle_constraint_widget.cpp
     tool/kis_shape_tool_helper.cpp
     tool/kis_tool.cc
     tool/kis_delegated_tool_policies.cpp
     tool/kis_tool_freehand.cc
     tool/kis_speed_smoother.cpp
     tool/kis_painting_information_builder.cpp
     tool/kis_stabilized_events_sampler.cpp
     tool/kis_tool_freehand_helper.cpp
     tool/kis_tool_multihand_helper.cpp
     tool/kis_figure_painting_tool_helper.cpp
     tool/kis_tool_paint.cc
     tool/kis_tool_shape.cc
     tool/kis_tool_ellipse_base.cpp
     tool/kis_tool_rectangle_base.cpp
     tool/kis_tool_polyline_base.cpp
     tool/kis_tool_utils.cpp
     tool/kis_resources_snapshot.cpp
     tool/kis_smoothing_options.cpp
     tool/KisStabilizerDelayedPaintHelper.cpp
     tool/KisStrokeSpeedMonitor.cpp
     tool/strokes/freehand_stroke.cpp
     tool/strokes/KisStrokeEfficiencyMeasurer.cpp
     tool/strokes/kis_painter_based_stroke_strategy.cpp
     tool/strokes/kis_filter_stroke_strategy.cpp
     tool/strokes/kis_color_picker_stroke_strategy.cpp
     tool/strokes/KisFreehandStrokeInfo.cpp
     tool/strokes/KisMaskedFreehandStrokePainter.cpp
     tool/strokes/KisMaskingBrushRenderer.cpp
     tool/strokes/KisMaskingBrushCompositeOpFactory.cpp
     tool/strokes/move_stroke_strategy.cpp
     tool/KisSelectionToolFactoryBase.cpp
     tool/KisToolPaintFactoryBase.cpp
 
     widgets/kis_cmb_composite.cc
     widgets/kis_cmb_contour.cpp
     widgets/kis_cmb_gradient.cpp
     widgets/kis_paintop_list_widget.cpp
     widgets/kis_cmb_idlist.cc
     widgets/kis_color_space_selector.cc
     widgets/kis_advanced_color_space_selector.cc
     widgets/kis_cie_tongue_widget.cpp
     widgets/kis_tone_curve_widget.cpp
     widgets/kis_curve_widget.cpp
     widgets/kis_custom_image_widget.cc
     widgets/kis_image_from_clipboard_widget.cpp
     widgets/kis_double_widget.cc
     widgets/kis_filter_selector_widget.cc
     widgets/kis_gradient_chooser.cc
     widgets/kis_iconwidget.cc
     widgets/kis_mask_widgets.cpp
     widgets/kis_meta_data_merge_strategy_chooser_widget.cc
     widgets/kis_multi_bool_filter_widget.cc
     widgets/kis_multi_double_filter_widget.cc
     widgets/kis_multi_integer_filter_widget.cc
     widgets/kis_multipliers_double_slider_spinbox.cpp
     widgets/kis_paintop_presets_popup.cpp
     widgets/kis_tool_options_popup.cpp
     widgets/kis_paintop_presets_chooser_popup.cpp
     widgets/kis_paintop_presets_save.cpp
     widgets/kis_paintop_preset_icon_library.cpp
     widgets/kis_pattern_chooser.cc
 
     widgets/kis_preset_chooser.cpp
     widgets/kis_progress_widget.cpp
     widgets/kis_selection_options.cc
     widgets/kis_scratch_pad.cpp
     widgets/kis_scratch_pad_event_filter.cpp
     widgets/kis_preset_selector_strip.cpp
     widgets/kis_slider_spin_box.cpp
     widgets/KisSelectionPropertySlider.cpp
     widgets/kis_size_group.cpp
     widgets/kis_size_group_p.cpp
     widgets/kis_wdg_generator.cpp
     widgets/kis_workspace_chooser.cpp
     widgets/kis_categorized_list_view.cpp
     widgets/kis_widget_chooser.cpp
     widgets/kis_tool_button.cpp
     widgets/kis_floating_message.cpp
     widgets/kis_lod_availability_widget.cpp
     widgets/kis_color_label_selector_widget.cpp
     widgets/kis_color_filter_combo.cpp
     widgets/kis_elided_label.cpp
     widgets/kis_stopgradient_slider_widget.cpp
     widgets/kis_preset_live_preview_view.cpp
     widgets/KisScreenColorPicker.cpp
     widgets/KoDualColorButton.cpp
     widgets/KoStrokeConfigWidget.cpp
     widgets/KoFillConfigWidget.cpp
     widgets/KisLayerStyleAngleSelector.cpp
     widgets/KisMemoryReportButton.cpp
 
     KisPaletteEditor.cpp
     dialogs/KisDlgPaletteEditor.cpp
 
     widgets/KisNewsWidget.cpp
     widgets/KisGamutMaskToolbar.cpp
 
     utils/kis_document_aware_spin_box_unit_manager.cpp
     utils/KisSpinBoxSplineUnitConverter.cpp
 
     input/kis_input_manager.cpp
     input/kis_input_manager_p.cpp
     input/kis_extended_modifiers_mapper.cpp
     input/kis_abstract_input_action.cpp
     input/kis_tool_invocation_action.cpp
     input/kis_pan_action.cpp
     input/kis_alternate_invocation_action.cpp
     input/kis_rotate_canvas_action.cpp
     input/kis_zoom_action.cpp
     input/kis_change_frame_action.cpp
     input/kis_gamma_exposure_action.cpp
     input/kis_show_palette_action.cpp
     input/kis_change_primary_setting_action.cpp
     input/kis_abstract_shortcut.cpp
     input/kis_native_gesture_shortcut.cpp
     input/kis_single_action_shortcut.cpp
     input/kis_stroke_shortcut.cpp
     input/kis_shortcut_matcher.cpp
     input/kis_select_layer_action.cpp
     input/KisQtWidgetsTweaker.cpp
     input/KisInputActionGroup.cpp
 
     operations/kis_operation.cpp
     operations/kis_operation_configuration.cpp
     operations/kis_operation_registry.cpp
     operations/kis_operation_ui_factory.cpp
     operations/kis_operation_ui_widget.cpp
     operations/kis_filter_selection_operation.cpp
     actions/kis_selection_action_factories.cpp
     actions/KisPasteActionFactory.cpp
     actions/KisTransformToolActivationCommand.cpp
     input/kis_touch_shortcut.cpp
     kis_document_undo_store.cpp
     kis_gui_context_command.cpp
     kis_gui_context_command_p.cpp
     input/kis_tablet_debugger.cpp
     input/kis_input_profile_manager.cpp
     input/kis_input_profile.cpp
     input/kis_shortcut_configuration.cpp
     input/config/kis_input_configuration_page.cpp
     input/config/kis_edit_profiles_dialog.cpp
     input/config/kis_input_profile_model.cpp
     input/config/kis_input_configuration_page_item.cpp
     input/config/kis_action_shortcuts_model.cpp
     input/config/kis_input_type_delegate.cpp
     input/config/kis_input_mode_delegate.cpp
     input/config/kis_input_button.cpp
     input/config/kis_input_editor_delegate.cpp
     input/config/kis_mouse_input_editor.cpp
     input/config/kis_wheel_input_editor.cpp
     input/config/kis_key_input_editor.cpp
     processing/fill_processing_visitor.cpp
     kis_asl_layer_style_serializer.cpp
     kis_psd_layer_style_resource.cpp
     canvas/kis_mirror_axis.cpp
 
     kis_abstract_perspective_grid.cpp
     
     KisApplication.cpp
     KisAutoSaveRecoveryDialog.cpp
     KisDetailsPane.cpp
     KisDocument.cpp
     KisCloneDocumentStroke.cpp
     kis_node_view_color_scheme.cpp
     KisImportExportFilter.cpp
     KisFilterEntry.cpp
     KisImportExportManager.cpp
     KisImportExportUtils.cpp
     kis_async_action_feedback.cpp
     KisMainWindow.cpp
     KisOpenPane.cpp
     KisPart.cpp
     KisPrintJob.cpp
     KisTemplate.cpp
     KisTemplateCreateDia.cpp
     KisTemplateGroup.cpp
     KisTemplates.cpp
     KisTemplatesPane.cpp
     KisTemplateTree.cpp
     KisUndoActionsUpdateManager.cpp
     KisView.cpp
 
     thememanager.cpp
 
     kis_mainwindow_observer.cpp
     KisViewManager.cpp
     kis_mirror_manager.cpp
 
     qtlockedfile/qtlockedfile.cpp
 
     qtsingleapplication/qtlocalpeer.cpp
     qtsingleapplication/qtsingleapplication.cpp
 
     KisResourceBundle.cpp
     KisResourceBundleManifest.cpp
 
     kis_md5_generator.cpp
     KisApplicationArguments.cpp
 
     KisNetworkAccessManager.cpp
     KisMultiFeedRSSModel.cpp
     KisRemoteFileFetcher.cpp
 
     KisSaveGroupVisitor.cpp
     KisWindowLayoutResource.cpp
     KisWindowLayoutManager.cpp
     KisSessionResource.cpp
 
     KisReferenceImagesDecoration.cpp
     KisReferenceImage.cpp
     flake/KisReferenceImagesLayer.cpp
     flake/KisReferenceImagesLayer.h
 
 )
 
 if(WIN32)
     # Private headers are needed for:
     #    * KisDlgCustomTabletResolution
     #    * KisScreenInformationAdapter
     include_directories(SYSTEM ${Qt5Gui_PRIVATE_INCLUDE_DIRS})
 
     set(kritaui_LIB_SRCS
         ${kritaui_LIB_SRCS}
         qtlockedfile/qtlockedfile_win.cpp
     )
     if (NOT USE_QT_TABLET_WINDOWS)
         set(kritaui_LIB_SRCS
             ${kritaui_LIB_SRCS}
             input/wintab/kis_tablet_support_win.cpp
             input/wintab/kis_screen_size_choice_dialog.cpp
             input/wintab/kis_tablet_support_win8.cpp
             )
     else()
         set(kritaui_LIB_SRCS
             ${kritaui_LIB_SRCS}
             dialogs/KisDlgCustomTabletResolution.cpp
             )
     endif()
 endif()
 
     set(kritaui_LIB_SRCS
         ${kritaui_LIB_SRCS}
         kis_animation_frame_cache.cpp
         kis_animation_cache_populator.cpp
         KisAsyncAnimationRendererBase.cpp
         KisAsyncAnimationCacheRenderer.cpp
         KisAsyncAnimationFramesSavingRenderer.cpp
         dialogs/KisAsyncAnimationRenderDialogBase.cpp
         dialogs/KisAsyncAnimationCacheRenderDialog.cpp
         dialogs/KisAsyncAnimationFramesSaveDialog.cpp
         canvas/kis_animation_player.cpp
         kis_animation_importer.cpp
         KisSyncedAudioPlayback.cpp
         KisFrameDataSerializer.cpp
         KisFrameCacheStore.cpp
         KisFrameCacheSwapper.cpp
         KisAbstractFrameCacheSwapper.cpp
         KisInMemoryFrameCacheSwapper.cpp
 
         input/wintab/drawpile_tablettester/tablettester.cpp
         input/wintab/drawpile_tablettester/tablettest.cpp
     )
 
 if (UNIX)
     set(kritaui_LIB_SRCS
         ${kritaui_LIB_SRCS}
         qtlockedfile/qtlockedfile_unix.cpp
         )
 endif()
 
 if(APPLE)
     set(kritaui_LIB_SRCS
         ${kritaui_LIB_SRCS}
         osx.mm
     )
 endif()
 
 ki18n_wrap_ui(kritaui_LIB_SRCS
     widgets/KoFillConfigWidget.ui
     widgets/KoStrokeConfigWidget.ui
     forms/wdgdlgpngimport.ui
     forms/wdgfullscreensettings.ui
     forms/wdgautogradient.ui
     forms/wdggeneralsettings.ui
     forms/wdgperformancesettings.ui
     forms/wdggenerators.ui
     forms/wdgbookmarkedconfigurationseditor.ui
     forms/wdgapplyprofile.ui
     forms/wdgcustompattern.ui
     forms/wdglayerproperties.ui
     forms/wdgcolorsettings.ui
     forms/wdgtabletsettings.ui
     forms/wdgcolorspaceselector.ui
     forms/wdgcolorspaceselectoradvanced.ui
     forms/wdgdisplaysettings.ui
     forms/kis_previewwidgetbase.ui
     forms/kis_matrix_widget.ui
     forms/wdgselectionoptions.ui
     forms/wdggeometryoptions.ui
     forms/wdgnewimage.ui
     forms/wdgimageproperties.ui
     forms/wdgmaskfromselection.ui
     forms/wdgmasksource.ui
     forms/wdgfilterdialog.ui
     forms/wdgmetadatamergestrategychooser.ui
     forms/wdgpaintoppresets.ui
     forms/wdgpaintopsettings.ui
     forms/wdgdlggeneratorlayer.ui
     forms/wdgdlgfilelayer.ui
     forms/wdgfilterselector.ui
     forms/wdgfilternodecreation.ui
     forms/wdgmultipliersdoublesliderspinbox.ui
     forms/wdgnodequerypatheditor.ui
     forms/wdgpresetselectorstrip.ui
     forms/wdgsavebrushpreset.ui
     forms/wdgpreseticonlibrary.ui
     forms/wdgdlgblacklistcleanup.ui
     forms/wdgrectangleconstraints.ui
     forms/wdgimportimagesequence.ui
     forms/wdgstrokeselectionproperties.ui
     forms/KisDetailsPaneBase.ui
     forms/KisOpenPaneBase.ui
     forms/wdgstopgradienteditor.ui
     forms/wdgsessionmanager.ui
     forms/wdgnewwindowlayout.ui
     forms/KisWelcomePage.ui
     forms/WdgDlgPaletteEditor.ui
     forms/KisNewsPage.ui
     forms/wdgGamutMaskToolbar.ui
+    forms/wdgchangeclonesource.ui
 
     brushhud/kis_dlg_brush_hud_config.ui
     dialogs/kis_delayed_save_dialog.ui
     input/config/kis_input_configuration_page.ui
     input/config/kis_edit_profiles_dialog.ui
     input/config/kis_input_configuration_page_item.ui
     input/config/kis_mouse_input_editor.ui
     input/config/kis_wheel_input_editor.ui
     input/config/kis_key_input_editor.ui
 
     layerstyles/wdgBevelAndEmboss.ui
     layerstyles/wdgblendingoptions.ui
     layerstyles/WdgColorOverlay.ui
     layerstyles/wdgContour.ui
     layerstyles/wdgdropshadow.ui
     layerstyles/WdgGradientOverlay.ui
     layerstyles/wdgInnerGlow.ui
     layerstyles/wdglayerstyles.ui
     layerstyles/WdgPatternOverlay.ui
     layerstyles/WdgSatin.ui
     layerstyles/WdgStroke.ui
     layerstyles/wdgstylesselector.ui
     layerstyles/wdgTexture.ui
     layerstyles/wdgKisLayerStyleAngleSelector.ui
 
     wdgsplash.ui
     input/wintab/kis_screen_size_choice_dialog.ui
     input/wintab/drawpile_tablettester/tablettest.ui
 
 )
 
 if(WIN32)
     if(USE_QT_TABLET_WINDOWS)
         ki18n_wrap_ui(kritaui_LIB_SRCS
             dialogs/KisDlgCustomTabletResolution.ui
         )
     else()
         ki18n_wrap_ui(kritaui_LIB_SRCS
             input/wintab/kis_screen_size_choice_dialog.ui
         )
     endif()
 endif()
 
 
 add_library(kritaui SHARED ${kritaui_HEADERS_MOC} ${kritaui_LIB_SRCS} )
 generate_export_header(kritaui BASE_NAME kritaui)
 
 target_link_libraries(kritaui KF5::CoreAddons KF5::Completion KF5::I18n KF5::ItemViews Qt5::Network
                       kritaimpex kritacolor kritaimage kritalibbrush kritawidgets kritawidgetutils ${PNG_LIBRARIES} LibExiv2::LibExiv2
 )
 
 if (HAVE_QT_MULTIMEDIA)
     target_link_libraries(kritaui Qt5::Multimedia)
 endif()
 
 if (NOT WIN32 AND NOT APPLE)
   target_link_libraries(kritaui ${X11_X11_LIB}
                                 ${X11_Xinput_LIB}
                                 ${XCB_LIBRARIES})
 endif()
 
 if(APPLE)
     target_link_libraries(kritaui ${FOUNDATION_LIBRARY})
     target_link_libraries(kritaui ${APPKIT_LIBRARY})
 endif ()
 
 
 target_link_libraries(kritaui ${OPENEXR_LIBRARIES})
 
 # Add VSync disable workaround
 if(NOT WIN32 AND NOT APPLE)
     target_link_libraries(kritaui ${CMAKE_DL_LIBS} Qt5::X11Extras)
 endif()
 
 if(X11_FOUND)
     target_link_libraries(kritaui Qt5::X11Extras ${X11_LIBRARIES})
 endif()
 
 target_include_directories(kritaui
     PUBLIC
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/canvas>
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/flake>
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/ora>
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/tool>
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/utils>
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/widgets>
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/input/wintab>
 )
 
 set_target_properties(kritaui
     PROPERTIES VERSION ${GENERIC_KRITA_LIB_VERSION} SOVERSION ${GENERIC_KRITA_LIB_SOVERSION}
 )
 install(TARGETS kritaui  ${INSTALL_TARGETS_DEFAULT_ARGS})
 
 
 if (APPLE)
     install(FILES osx.stylesheet DESTINATION ${DATA_INSTALL_DIR}/krita)
 endif ()
diff --git a/libs/ui/KisChangeCloneLayersCommand.cpp b/libs/ui/KisChangeCloneLayersCommand.cpp
new file mode 100644
index 0000000000..e5eb7a1bb6
--- /dev/null
+++ b/libs/ui/KisChangeCloneLayersCommand.cpp
@@ -0,0 +1,58 @@
+/*
+ *  Copyright (c) 2019 Tusooa Zhu <tusooa@vista.aero>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "KisChangeCloneLayersCommand.h"
+
+#include <kis_clone_layer.h>
+
+struct KisChangeCloneLayersCommand::Private
+{
+    QList<KisCloneLayerSP> cloneLayers;
+    QList<KisLayerSP> originalSource;
+    KisLayerSP newSource;
+};
+
+KisChangeCloneLayersCommand::KisChangeCloneLayersCommand(QList<KisCloneLayerSP> cloneLayers, KisLayerSP newSource, KUndo2Command *parent)
+    : KUndo2Command(kundo2_i18n("Change Clone Layers"), parent)
+    , d(new Private())
+{
+    Q_ASSERT(!cloneLayers.isEmpty());
+    d->cloneLayers = cloneLayers;
+    Q_FOREACH (KisCloneLayerSP layer, d->cloneLayers) {
+        d->originalSource << layer->copyFrom();
+    }
+    d->newSource = newSource;
+}
+
+void KisChangeCloneLayersCommand::redo()
+{
+    Q_FOREACH (KisCloneLayerSP layer, d->cloneLayers) {
+        layer->setCopyFrom(d->newSource);
+        layer->setDirty();
+    }
+}
+
+void KisChangeCloneLayersCommand::undo()
+{
+    Q_ASSERT(d->cloneLayers.size() == d->originalSource.size());
+    for (int i = 0; i < d->cloneLayers.size(); ++i) {
+        KisCloneLayerSP layer = d->cloneLayers.at(i);
+        layer->setCopyFrom(d->originalSource.at(i));
+        layer->setDirty();
+    }
+}
diff --git a/libs/ui/KisChangeCloneLayersCommand.h b/libs/ui/KisChangeCloneLayersCommand.h
new file mode 100644
index 0000000000..465a84d81a
--- /dev/null
+++ b/libs/ui/KisChangeCloneLayersCommand.h
@@ -0,0 +1,39 @@
+/*
+ *  Copyright (c) 2019 Tusooa Zhu <tusooa@vista.aero>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef KIS_CHANGE_CLONE_LAYERS_COMMAND_H_
+#define KIS_CHANGE_CLONE_LAYERS_COMMAND_H_
+
+#include <kundo2command.h>
+#include "kis_types.h"
+
+class KisChangeCloneLayersCommand : public KUndo2Command
+{
+
+public:
+    KisChangeCloneLayersCommand(QList<KisCloneLayerSP> cloneLayers, KisLayerSP newSource, KUndo2Command *parent = 0);
+
+    void undo() override;
+    void redo() override;
+
+private:
+    struct Private;
+    QScopedPointer<Private> d;
+};
+
+#endif // KIS_CHANGE_CLONE_LAYERS_COMMAND_H_
diff --git a/libs/ui/dialogs/KisDlgChangeCloneSource.cpp b/libs/ui/dialogs/KisDlgChangeCloneSource.cpp
new file mode 100644
index 0000000000..3ee3095ee5
--- /dev/null
+++ b/libs/ui/dialogs/KisDlgChangeCloneSource.cpp
@@ -0,0 +1,119 @@
+/*
+ *  Copyright (c) 2019 Tusooa Zhu <tusooa@vista.aero>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "KisDlgChangeCloneSource.h"
+
+#include <kis_clone_layer.h>
+#include <kis_image.h>
+#include <kis_undo_adapter.h>
+
+#include "KisViewManager.h"
+#include "KisChangeCloneLayersCommand.h"
+
+struct KisDlgChangeCloneSource::Private
+{
+    QList<KisCloneLayerSP> cloneLayers;
+    KisViewManager *view;
+    QList<KisLayerSP> validTargets;
+    Ui::WdgChangeCloneSource ui;
+    void addToTargetListRecursively(KisNodeSP node, bool addSelf = true);
+};
+
+void KisDlgChangeCloneSource::Private::addToTargetListRecursively(KisNodeSP node, bool addSelf)
+{
+    if (!node) {
+        return;
+    }
+    if (addSelf) {
+        KisLayerSP layer(qobject_cast<KisLayer *>(node.data()));
+        if (layer) {
+            validTargets << layer;
+        }
+    }
+    for (KisNodeSP childNode = node->lastChild(); childNode; childNode = childNode->prevSibling()) {
+        KisLayerSP childLayer(qobject_cast<KisLayer *>(childNode.data()));
+        if (childLayer) {
+            addToTargetListRecursively(childLayer);
+        }
+    }
+
+}
+
+KisDlgChangeCloneSource::KisDlgChangeCloneSource(QList<KisCloneLayerSP> layers, KisViewManager *view, QWidget *parent)
+    : KoDialog(parent)
+    , d(new Private())
+{
+    Q_ASSERT(!layers.isEmpty());
+    d->cloneLayers = layers;
+    d->view = view;
+
+    setButtons(Ok | Cancel);
+    setDefaultButton(Ok);
+
+    QWidget *widget = new QWidget(this);
+    d->ui.setupUi(widget);
+    setMainWidget(widget);
+
+    updateTargetLayerList();
+}
+
+KisDlgChangeCloneSource::~KisDlgChangeCloneSource()
+{
+    if (result() == QDialog::Accepted) {
+        int index = d->ui.cmbSourceLayer->currentIndex();
+        if (index != -1) {
+            KisLayerSP targetLayer = d->validTargets.at(index);
+            KisChangeCloneLayersCommand *command = new KisChangeCloneLayersCommand(d->cloneLayers, targetLayer);
+            d->view->undoAdapter()->addCommand(command);
+        }
+    }
+}
+
+void KisDlgChangeCloneSource::updateTargetLayerList()
+{
+    KisImageWSP image = d->view->image();
+    if (!image) {
+        return;
+    }
+    KisNodeSP root = image->root();
+    d->validTargets.clear();
+    d->addToTargetListRecursively(root, /* addSelf = */ false);
+
+    KisLayerSP commonCopyFrom(d->cloneLayers.first()->copyFrom());
+
+    Q_FOREACH (KisCloneLayerSP clone, d->cloneLayers) {
+        // filter out invalid targets: selected clone layers and their ancestors
+        for (KisNodeSP node(clone.data()); node && node != root; node = node->parent()) {
+            d->validTargets.removeOne(qobject_cast<KisLayer *>(node.data()));
+        }
+
+        // assume that clone->copyFrom() != 0
+        if (clone->copyFrom() != commonCopyFrom) {
+            commonCopyFrom = 0;
+        }
+    }
+
+    d->ui.cmbSourceLayer->clear();
+    Q_FOREACH (KisNodeSP node, d->validTargets) {
+        d->ui.cmbSourceLayer->addItem(node->name());
+    }
+
+    if (commonCopyFrom) {
+        d->ui.cmbSourceLayer->setCurrentIndex(d->validTargets.indexOf(commonCopyFrom));
+    }
+}
diff --git a/libs/ui/dialogs/KisDlgChangeCloneSource.h b/libs/ui/dialogs/KisDlgChangeCloneSource.h
new file mode 100644
index 0000000000..766577c960
--- /dev/null
+++ b/libs/ui/dialogs/KisDlgChangeCloneSource.h
@@ -0,0 +1,48 @@
+/*
+ *  Copyright (c) 2019 Tusooa Zhu <tusooa@vista.aero>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef KIS_DLG_CHANGE_CLONE_SOURCE_H_
+#define KIS_DLG_CHANGE_CLONE_SOURCE_H_
+
+#include "kis_types.h"
+#include <KoDialog.h>
+
+#include "ui_wdgchangeclonesource.h"
+
+class QWidget;
+class KisViewManager;
+class KisDocument;
+
+class KisDlgChangeCloneSource : public KoDialog
+{
+    Q_OBJECT
+
+public:
+    KisDlgChangeCloneSource(QList<KisCloneLayerSP> layers, KisViewManager *view, QWidget *parent = 0);
+
+    ~KisDlgChangeCloneSource() override;
+
+private:
+    void updateTargetLayerList();
+
+private:
+    struct Private;
+    const QScopedPointer<Private> d;
+};
+
+#endif // KIS_DLG_CHANGE_CLONE_SOURCE_H_
diff --git a/libs/ui/forms/wdgchangeclonesource.ui b/libs/ui/forms/wdgchangeclonesource.ui
new file mode 100644
index 0000000000..17fae627af
--- /dev/null
+++ b/libs/ui/forms/wdgchangeclonesource.ui
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>WdgChangeCloneSource</class>
+ <widget class="QWidget" name="WdgChangeCloneSource">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>358</width>
+    <height>166</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string/>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_2">
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <layout class="QGridLayout" name="gridLayout">
+       <item row="0" column="0">
+        <widget class="QLabel" name="lblSourceLayer">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="text">
+          <string>Copy from:</string>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1">
+        <widget class="QComboBox" name="cmbSourceLayer">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <spacer name="verticalSpacer">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>20</width>
+       <height>40</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/libs/ui/kis_layer_manager.cc b/libs/ui/kis_layer_manager.cc
index 98899368bc..10fa864938 100644
--- a/libs/ui/kis_layer_manager.cc
+++ b/libs/ui/kis_layer_manager.cc
@@ -1,970 +1,1000 @@
 /*
  *  Copyright (C) 2006 Boudewijn Rempt <boud@valdyas.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
 #include "kis_layer_manager.h"
 
 #include <QRect>
 #include <QApplication>
 #include <QCursor>
 #include <QString>
 #include <QDialog>
 #include <QVBoxLayout>
 #include <QFileInfo>
 #include <QStandardPaths>
 
 #include <kactioncollection.h>
 #include <klocalizedstring.h>
 #include <QMessageBox>
 #include <QUrl>
 
 #include <kis_file_name_requester.h>
 #include <kis_icon.h>
 #include <KisImportExportManager.h>
 #include <KisDocument.h>
 #include <KoColorSpace.h>
 #include <KoCompositeOpRegistry.h>
 #include <KoPointerEvent.h>
 #include <KoColorProfile.h>
 #include <KoSelection.h>
 #include <KisPart.h>
 #include <KisMainWindow.h>
 
 #include <filter/kis_filter_configuration.h>
 #include <filter/kis_filter.h>
 #include <kis_filter_strategy.h>
 #include <generator/kis_generator_layer.h>
 #include <kis_file_layer.h>
 #include <kis_adjustment_layer.h>
 #include <kis_mask.h>
 #include <kis_clone_layer.h>
 #include <kis_group_layer.h>
 #include <kis_image.h>
 #include <kis_layer.h>
 #include <kis_paint_device.h>
 #include <kis_selection.h>
 #include <flake/kis_shape_layer.h>
 #include <kis_undo_adapter.h>
 #include <kis_painter.h>
 #include <kis_meta_data_store.h>
 #include <kis_meta_data_merge_strategy_registry.h>
 #include <kis_psd_layer_style.h>
 #include <KisMimeDatabase.h>
 
 #include "kis_config.h"
 #include "kis_cursor.h"
 #include "dialogs/kis_dlg_adj_layer_props.h"
 #include "dialogs/kis_dlg_adjustment_layer.h"
 #include "dialogs/kis_dlg_layer_properties.h"
 #include "dialogs/kis_dlg_generator_layer.h"
 #include "dialogs/kis_dlg_file_layer.h"
 #include "dialogs/kis_dlg_layer_style.h"
+#include "dialogs/KisDlgChangeCloneSource.h"
 #include "kis_filter_manager.h"
 #include "kis_node_visitor.h"
 #include "kis_paint_layer.h"
 #include "commands/kis_image_commands.h"
 #include "commands/kis_node_commands.h"
 #include "kis_change_file_layer_command.h"
 #include "kis_canvas_resource_provider.h"
 #include "kis_selection_manager.h"
 #include "kis_statusbar.h"
 #include "KisViewManager.h"
 #include "kis_zoom_manager.h"
 #include "canvas/kis_canvas2.h"
 #include "widgets/kis_meta_data_merge_strategy_chooser_widget.h"
 #include "widgets/kis_wdg_generator.h"
 #include "kis_progress_widget.h"
 #include "kis_node_commands_adapter.h"
 #include "kis_node_manager.h"
 #include "kis_action.h"
 #include "kis_action_manager.h"
 #include "kis_raster_keyframe_channel.h"
 #include "KisImportExportManager.h"
 #include "kis_signal_compressor_with_param.h"
 #include "kis_abstract_projection_plane.h"
 #include "commands_new/kis_set_layer_style_command.h"
 #include "kis_post_execution_undo_adapter.h"
 #include "kis_selection_mask.h"
 #include "kis_layer_utils.h"
 #include "lazybrush/kis_colorize_mask.h"
 #include "kis_processing_applicator.h"
 
 #include "KisSaveGroupVisitor.h"
 
 KisLayerManager::KisLayerManager(KisViewManager * view)
     : m_view(view)
     , m_imageView(0)
     , m_imageFlatten(0)
     , m_imageMergeLayer(0)
     , m_groupLayersSave(0)
     , m_imageResizeToLayer(0)
     , m_flattenLayer(0)
     , m_rasterizeLayer(0)
     , m_commandsAdapter(new KisNodeCommandsAdapter(m_view))
     , m_layerStyle(0)
 {
 }
 
 KisLayerManager::~KisLayerManager()
 {
     delete m_commandsAdapter;
 }
 
 void KisLayerManager::setView(QPointer<KisView>view)
 {
     m_imageView = view;
 }
 
 KisLayerSP KisLayerManager::activeLayer()
 {
     if (m_imageView) {
         return m_imageView->currentLayer();
     }
     return 0;
 }
 
 KisPaintDeviceSP KisLayerManager::activeDevice()
 {
     if (activeLayer()) {
         return activeLayer()->paintDevice();
     }
     return 0;
 }
 
 void KisLayerManager::activateLayer(KisLayerSP layer)
 {
     if (m_imageView) {
         emit sigLayerActivated(layer);
         layersUpdated();
         if (layer) {
             m_view->canvasResourceProvider()->slotNodeActivated(layer.data());
         }
     }
 }
 
 
 void KisLayerManager::setup(KisActionManager* actionManager)
 {
     m_imageFlatten = actionManager->createAction("flatten_image");
     connect(m_imageFlatten, SIGNAL(triggered()), this, SLOT(flattenImage()));
 
     m_imageMergeLayer = actionManager->createAction("merge_layer");
     connect(m_imageMergeLayer, SIGNAL(triggered()), this, SLOT(mergeLayer()));
 
     m_flattenLayer = actionManager->createAction("flatten_layer");
     connect(m_flattenLayer, SIGNAL(triggered()), this, SLOT(flattenLayer()));
 
     m_rasterizeLayer = actionManager->createAction("rasterize_layer");
     connect(m_rasterizeLayer, SIGNAL(triggered()), this, SLOT(rasterizeLayer()));
 
     m_groupLayersSave = actionManager->createAction("save_groups_as_images");
     connect(m_groupLayersSave, SIGNAL(triggered()), this, SLOT(saveGroupLayers()));
 
     m_convertGroupAnimated = actionManager->createAction("convert_group_to_animated");
     connect(m_convertGroupAnimated, SIGNAL(triggered()), this, SLOT(convertGroupToAnimated()));
 
     m_imageResizeToLayer = actionManager->createAction("resizeimagetolayer");
     connect(m_imageResizeToLayer, SIGNAL(triggered()), this, SLOT(imageResizeToActiveLayer()));
 
     KisAction *action = actionManager->createAction("trim_to_image");
     connect(action, SIGNAL(triggered()), this, SLOT(trimToImage()));
 
     m_layerStyle  = actionManager->createAction("layer_style");
     connect(m_layerStyle, SIGNAL(triggered()), this, SLOT(layerStyle()));
 
 }
 
 void KisLayerManager::updateGUI()
 {
     KisImageSP image = m_view->image();
     KisLayerSP layer = activeLayer();
 
     const bool isGroupLayer = layer && layer->inherits("KisGroupLayer");
 
     m_imageMergeLayer->setText(
                 isGroupLayer ?
                     i18nc("@action:inmenu", "Merge Group") :
                     i18nc("@action:inmenu", "Merge with Layer Below"));
     m_flattenLayer->setVisible(!isGroupLayer);
 
     if (m_view->statusBar())
         m_view->statusBar()->setProfile(image);
 }
 
 void KisLayerManager::imageResizeToActiveLayer()
 {
     KisLayerSP layer;
     KisImageWSP image = m_view->image();
 
     if (image && (layer = activeLayer())) {
         QRect cropRect = layer->projection()->nonDefaultPixelArea();
         if (!cropRect.isEmpty()) {
             image->cropImage(cropRect);
         } else {
             m_view->showFloatingMessage(
                         i18nc("floating message in layer manager",
                               "Layer is empty "),
                         QIcon(), 2000, KisFloatingMessage::Low);
         }
     }
 }
 
 void KisLayerManager::trimToImage()
 {
     KisImageWSP image = m_view->image();
     if (image) {
         image->cropImage(image->bounds());
     }
 }
 
 void KisLayerManager::layerProperties()
 {
     if (!m_view) return;
     if (!m_view->document()) return;
 
     KisLayerSP layer = activeLayer();
     if (!layer) return;
 
     QList<KisNodeSP> selectedNodes = m_view->nodeManager()->selectedNodes();
     const bool multipleLayersSelected = selectedNodes.size() > 1;
 
     KisAdjustmentLayerSP adjustmentLayer = KisAdjustmentLayerSP(dynamic_cast<KisAdjustmentLayer*>(layer.data()));
     KisGeneratorLayerSP groupLayer = KisGeneratorLayerSP(dynamic_cast<KisGeneratorLayer*>(layer.data()));
     KisFileLayerSP filterLayer = KisFileLayerSP(dynamic_cast<KisFileLayer*>(layer.data()));
 
     if (adjustmentLayer && !multipleLayersSelected) {
 
         KisPaintDeviceSP dev = adjustmentLayer->projection();
 
         KisDlgAdjLayerProps dlg(adjustmentLayer, adjustmentLayer.data(), dev, m_view, adjustmentLayer->filter().data(), adjustmentLayer->name(), i18n("Filter Layer Properties"), m_view->mainWindow(), "dlgadjlayerprops");
         dlg.resize(dlg.minimumSizeHint());
 
 
         KisFilterConfigurationSP configBefore(adjustmentLayer->filter());
         KIS_ASSERT_RECOVER_RETURN(configBefore);
         QString xmlBefore = configBefore->toXML();
 
 
         if (dlg.exec() == QDialog::Accepted) {
 
             adjustmentLayer->setName(dlg.layerName());
 
             KisFilterConfigurationSP configAfter(dlg.filterConfiguration());
             Q_ASSERT(configAfter);
             QString xmlAfter = configAfter->toXML();
 
             if(xmlBefore != xmlAfter) {
                 KisChangeFilterCmd *cmd
                         = new KisChangeFilterCmd(adjustmentLayer,
                                                  configBefore->name(),
                                                  xmlBefore,
                                                  configAfter->name(),
                                                  xmlAfter,
                                                  false);
                 // FIXME: check whether is needed
                 cmd->redo();
                 m_view->undoAdapter()->addCommand(cmd);
                 m_view->document()->setModified(true);
             }
         }
         else {
             KisFilterConfigurationSP configAfter(dlg.filterConfiguration());
             Q_ASSERT(configAfter);
             QString xmlAfter = configAfter->toXML();
 
             if(xmlBefore != xmlAfter) {
                 adjustmentLayer->setFilter(KisFilterRegistry::instance()->cloneConfiguration(configBefore.data()));
                 adjustmentLayer->setDirty();
             }
         }
     }
     else if (groupLayer && !multipleLayersSelected) {
         KisFilterConfigurationSP configBefore(groupLayer->filter());
         Q_ASSERT(configBefore);
         QString xmlBefore = configBefore->toXML();
 
         KisDlgGeneratorLayer *dlg = new KisDlgGeneratorLayer(groupLayer->name(), m_view, m_view->mainWindow(), groupLayer, configBefore);
         dlg->setCaption(i18n("Fill Layer Properties"));
         dlg->setAttribute(Qt::WA_DeleteOnClose);
 
         dlg->setConfiguration(configBefore.data());
         dlg->resize(dlg->minimumSizeHint());
 
         Qt::WindowFlags flags = dlg->windowFlags();
         dlg->setWindowFlags(flags | Qt::WindowStaysOnTopHint | Qt::Dialog);
         dlg->show();
 
     }
     else if (filterLayer && !multipleLayersSelected){
         QString basePath = QFileInfo(m_view->document()->url().toLocalFile()).absolutePath();
         QString fileNameOld = filterLayer->fileName();
         KisFileLayer::ScalingMethod scalingMethodOld = filterLayer->scalingMethod();
         KisDlgFileLayer dlg(basePath, filterLayer->name(), m_view->mainWindow());
         dlg.setCaption(i18n("File Layer Properties"));
         dlg.setFileName(fileNameOld);
         dlg.setScalingMethod(scalingMethodOld);
 
         if (dlg.exec() == QDialog::Accepted) {
             const QString fileNameNew = dlg.fileName();
             KisFileLayer::ScalingMethod scalingMethodNew = dlg.scaleToImageResolution();
 
             if(fileNameNew.isEmpty()){
                 QMessageBox::critical(m_view->mainWindow(), i18nc("@title:window", "Krita"), i18n("No file name specified"));
                 return;
             }
             filterLayer->setName(dlg.layerName());
 
             if (fileNameOld!= fileNameNew || scalingMethodOld != scalingMethodNew) {
                 KisChangeFileLayerCmd *cmd
                         = new KisChangeFileLayerCmd(filterLayer,
                                                     basePath,
                                                     fileNameOld,
                                                     scalingMethodOld,
                                                     basePath,
                                                     fileNameNew,
                                                     scalingMethodNew);
                 m_view->undoAdapter()->addCommand(cmd);
             }
         }
     } else { // If layer == normal painting layer, vector layer, or group layer
         QList<KisNodeSP> selectedNodes = m_view->nodeManager()->selectedNodes();
 
         KisDlgLayerProperties *dialog = new KisDlgLayerProperties(selectedNodes, m_view);
         dialog->resize(dialog->minimumSizeHint());
         dialog->setAttribute(Qt::WA_DeleteOnClose);
         Qt::WindowFlags flags = dialog->windowFlags();
         dialog->setWindowFlags(flags | Qt::WindowStaysOnTopHint | Qt::Dialog);
         dialog->show();
 
     }
 }
 
+void KisLayerManager::changeCloneSource()
+{
+    QList<KisNodeSP> selectedNodes = m_view->nodeManager()->selectedNodes();
+    if (selectedNodes.isEmpty()) {
+        return;
+    }
+
+    QList<KisCloneLayerSP> cloneLayers;
+    KisNodeSP node;
+    Q_FOREACH (node, selectedNodes) {
+        KisCloneLayerSP cloneLayer(qobject_cast<KisCloneLayer *>(node.data()));
+        if (cloneLayer) {
+            cloneLayers << cloneLayer;
+        }
+    }
+
+    if (cloneLayers.isEmpty()) {
+        return;
+    }
+
+    KisDlgChangeCloneSource *dialog = new KisDlgChangeCloneSource(cloneLayers, m_view);
+    dialog->setCaption(i18n("Change Clone Layer"));
+    dialog->resize(dialog->minimumSizeHint());
+    dialog->setAttribute(Qt::WA_DeleteOnClose);
+    Qt::WindowFlags flags = dialog->windowFlags();
+    dialog->setWindowFlags(flags | Qt::WindowStaysOnTopHint | Qt::Dialog);
+    dialog->show();
+}
+
 void KisLayerManager::convertNodeToPaintLayer(KisNodeSP source)
 {
     KisImageWSP image = m_view->image();
     if (!image) return;
 
 
     KisLayer *srcLayer = qobject_cast<KisLayer*>(source.data());
     if (srcLayer && (srcLayer->inherits("KisGroupLayer") || srcLayer->layerStyle() || srcLayer->childCount() > 0)) {
         image->flattenLayer(srcLayer);
         return;
     }
 
 
     KisPaintDeviceSP srcDevice =
             source->paintDevice() ? source->projection() : source->original();
 
     bool putBehind = false;
     QString newCompositeOp = source->compositeOpId();
     KisColorizeMask *colorizeMask = dynamic_cast<KisColorizeMask*>(source.data());
     if (colorizeMask) {
         srcDevice = colorizeMask->coloringProjection();
         putBehind = colorizeMask->compositeOpId() == COMPOSITE_BEHIND;
         if (putBehind) {
             newCompositeOp = COMPOSITE_OVER;
         }
     }
 
     if (!srcDevice) return;
 
     KisPaintDeviceSP clone;
 
     if (*srcDevice->colorSpace() !=
             *srcDevice->compositionSourceColorSpace()) {
 
         clone = new KisPaintDevice(srcDevice->compositionSourceColorSpace());
 
         QRect rc(srcDevice->extent());
         KisPainter::copyAreaOptimized(rc.topLeft(), srcDevice, clone, rc);
 
     } else {
         clone = new KisPaintDevice(*srcDevice);
     }
 
     KisLayerSP layer = new KisPaintLayer(image,
                                          source->name(),
                                          source->opacity(),
                                          clone);
     layer->setCompositeOpId(newCompositeOp);
 
     KisNodeSP parent = source->parent();
     KisNodeSP above = source->prevSibling();
 
     while (parent && !parent->allowAsChild(layer)) {
         above = above ? above->parent() : source->parent();
         parent = above ? above->parent() : 0;
     }
 
     if (putBehind && above == source->parent()) {
         above = above->prevSibling();
     }
 
     m_commandsAdapter->beginMacro(kundo2_i18n("Convert to a Paint Layer"));
     m_commandsAdapter->removeNode(source);
     m_commandsAdapter->addNode(layer, parent, above);
     m_commandsAdapter->endMacro();
 
 }
 
 void KisLayerManager::convertGroupToAnimated()
 {
     KisGroupLayerSP group = dynamic_cast<KisGroupLayer*>(activeLayer().data());
     if (group.isNull()) return;
 
     KisPaintLayerSP animatedLayer = new KisPaintLayer(m_view->image(), group->name(), OPACITY_OPAQUE_U8);
     animatedLayer->enableAnimation();
     KisRasterKeyframeChannel *contentChannel = dynamic_cast<KisRasterKeyframeChannel*>(
                 animatedLayer->getKeyframeChannel(KisKeyframeChannel::Content.id(), true));
     KIS_ASSERT_RECOVER_RETURN(contentChannel);
 
     KisNodeSP child = group->firstChild();
     int time = 0;
     while (child) {
         contentChannel->importFrame(time, child->projection(), NULL);
         time++;
 
         child = child->nextSibling();
     }
 
     m_commandsAdapter->beginMacro(kundo2_i18n("Convert to an animated layer"));
     m_commandsAdapter->addNode(animatedLayer, group->parent(), group);
     m_commandsAdapter->removeNode(group);
     m_commandsAdapter->endMacro();
 }
 
 void KisLayerManager::convertLayerToFileLayer(KisNodeSP source)
 {
     KisImageSP image = m_view->image();
     if (!image) return;
 
     QStringList listMimeFilter = KisImportExportManager::supportedMimeTypes(KisImportExportManager::Export);
 
     KoDialog dlg;
     QWidget *page = new QWidget(&dlg);
     dlg.setMainWidget(page);
     QBoxLayout *layout = new QVBoxLayout(page);
     dlg.setWindowTitle(i18n("Save layers to..."));
     QLabel *lbl = new QLabel(i18n("Choose the location where the layer will be saved to. The new file layer will then reference this location."));
     lbl->setWordWrap(true);
     layout->addWidget(lbl);
     KisFileNameRequester *urlRequester = new KisFileNameRequester(page);
     urlRequester->setMode(KoFileDialog::SaveFile);
     urlRequester->setMimeTypeFilters(listMimeFilter);
     urlRequester->setFileName(m_view->document()->url().toLocalFile());
     if (m_view->document()->url().isLocalFile()) {
         QFileInfo location = QFileInfo(m_view->document()->url().toLocalFile()).baseName();
         location.setFile(location.dir(), location.baseName() + "_" + source->name() + ".png");
         urlRequester->setFileName(location.absoluteFilePath());
     }
     else {
         const QFileInfo location = QFileInfo(QStandardPaths::writableLocation(QStandardPaths::HomeLocation));
         const QString proposedFileName = QDir(location.absoluteFilePath()).absoluteFilePath(source->name() + ".png");
         urlRequester->setFileName(proposedFileName);
     }
 
     // We don't want .kra files as file layers, Krita cannot handle the load.
     QStringList mimes = KisImportExportManager::supportedMimeTypes(KisImportExportManager::Export);
     int i = mimes.indexOf(KIS_MIME_TYPE);
     if (i >= 0 && i < mimes.size()) {
         mimes.removeAt(i);
     }
     urlRequester->setMimeTypeFilters(mimes);
 
     layout->addWidget(urlRequester);
     if (!dlg.exec()) return;
 
     QString path = urlRequester->fileName();
 
     if (path.isEmpty()) return;
 
     QFileInfo f(path);
 
     QString mimeType= KisMimeDatabase::mimeTypeForFile(f.fileName());
     if (mimeType.isEmpty()) {
         mimeType = "image/png";
     }
     QScopedPointer<KisDocument> doc(KisPart::instance()->createDocument());
 
     QRect bounds = source->exactBounds();
 
     KisImageSP dst = new KisImage(doc->createUndoStore(),
                                   image->width(),
                                   image->height(),
                                   image->projection()->compositionSourceColorSpace(),
                                   source->name());
     dst->setResolution(image->xRes(), image->yRes());
     doc->setFileBatchMode(false);
     doc->setCurrentImage(dst);
     KisNodeSP node = source->clone();
     dst->addNode(node);
     dst->initialRefreshGraph();
     dst->cropImage(bounds);
     dst->waitForDone();
 
     bool r = doc->exportDocumentSync(QUrl::fromLocalFile(path), mimeType.toLatin1());
     if (!r) {
 
         qWarning() << "Converting layer to file layer. path:"<< path << "gave errors" << doc->errorMessage();
     } else {
         QString basePath = QFileInfo(m_view->document()->url().toLocalFile()).absolutePath();
         QString relativePath = QDir(basePath).relativeFilePath(path);
         KisFileLayer *fileLayer = new KisFileLayer(image, basePath, relativePath, KisFileLayer::None, source->name(), OPACITY_OPAQUE_U8);
         fileLayer->setX(bounds.x());
         fileLayer->setY(bounds.y());
         KisNodeSP dstParent = source->parent();
         KisNodeSP dstAboveThis = source->prevSibling();
         m_commandsAdapter->beginMacro(kundo2_i18n("Convert to a file layer"));
         m_commandsAdapter->removeNode(source);
         m_commandsAdapter->addNode(fileLayer, dstParent, dstAboveThis);
         m_commandsAdapter->endMacro();
     }
     doc->closeUrl(false);
 }
 
 void KisLayerManager::adjustLayerPosition(KisNodeSP node, KisNodeSP activeNode, KisNodeSP &parent, KisNodeSP &above)
 {
     Q_ASSERT(activeNode);
 
     parent = activeNode;
     above = parent->lastChild();
 
     if (parent->inherits("KisGroupLayer") && parent->collapsed()) {
         above = parent;
         parent = parent->parent();
         return;
     }
 
     while (parent &&
            (!parent->allowAsChild(node) || parent->userLocked())) {
 
         above = parent;
         parent = parent->parent();
     }
 
     if (!parent) {
         warnKrita << "KisLayerManager::adjustLayerPosition:"
                   << "No node accepted newly created node";
 
         parent = m_view->image()->root();
         above = parent->lastChild();
     }
 }
 
 void KisLayerManager::addLayerCommon(KisNodeSP activeNode, KisNodeSP layer, bool updateImage, KisProcessingApplicator *applicator)
 {
     KisNodeSP parent;
     KisNodeSP above;
     adjustLayerPosition(layer, activeNode, parent, above);
 
     KisGroupLayer *group = dynamic_cast<KisGroupLayer*>(parent.data());
     const bool parentForceUpdate = group && !group->projectionIsValid();
     updateImage |= parentForceUpdate;
 
     m_commandsAdapter->addNodeAsync(layer, parent, above, updateImage, updateImage, applicator);
 }
 
 KisLayerSP KisLayerManager::addPaintLayer(KisNodeSP activeNode)
 {
     KisImageWSP image = m_view->image();
     KisLayerSP layer = new KisPaintLayer(image.data(), image->nextLayerName(), OPACITY_OPAQUE_U8, image->colorSpace());
     addLayerCommon(activeNode, layer, false, 0);
 
     return layer;
 }
 
 KisNodeSP KisLayerManager::addGroupLayer(KisNodeSP activeNode)
 {
     KisImageWSP image = m_view->image();
     KisGroupLayerSP group = new KisGroupLayer(image.data(), image->nextLayerName(), OPACITY_OPAQUE_U8);
     addLayerCommon(activeNode, group, false, 0);
     return group;
 }
 
 KisNodeSP KisLayerManager::addCloneLayer(KisNodeSP activeNode)
 {
     KisImageWSP image = m_view->image();
     KisNodeSP node = new KisCloneLayer(activeLayer(), image.data(), image->nextLayerName(), OPACITY_OPAQUE_U8);
     addLayerCommon(activeNode, node, true, 0);
     return node;
 }
 
 KisNodeSP KisLayerManager::addShapeLayer(KisNodeSP activeNode)
 {
     if (!m_view) return 0;
     if (!m_view->document()) return 0;
 
     KisImageWSP image = m_view->image();
     KisShapeLayerSP layer = new KisShapeLayer(m_view->document()->shapeController(), image.data(), image->nextLayerName(), OPACITY_OPAQUE_U8);
 
     addLayerCommon(activeNode, layer, false, 0);
 
     return layer;
 }
 
 KisNodeSP KisLayerManager::addAdjustmentLayer(KisNodeSP activeNode)
 {
     KisImageWSP image = m_view->image();
 
     KisSelectionSP selection = m_view->selection();
 
     KisProcessingApplicator applicator(image, 0, KisProcessingApplicator::NONE,
                                        KisImageSignalVector() << ModifiedSignal,
                                        kundo2_i18n("Add Layer"));
 
 
     KisAdjustmentLayerSP adjl = addAdjustmentLayer(activeNode, QString(), 0, selection, &applicator);
 
     KisPaintDeviceSP previewDevice = new KisPaintDevice(*adjl->original());
 
     KisDlgAdjustmentLayer dlg(adjl, adjl.data(), previewDevice, image->nextLayerName(), i18n("New Filter Layer"), m_view);
     dlg.resize(dlg.minimumSizeHint());
 
     // ensure that the device may be free'd by the dialog
     // when it is not needed anymore
     previewDevice = 0;
 
     if (dlg.exec() != QDialog::Accepted || adjl->filter().isNull()) {
         // XXX: add messagebox warning if there's no filter set!
         applicator.cancel();
     } else {
         adjl->setName(dlg.layerName());
         applicator.end();
     }
 
     return adjl;
 }
 
 KisAdjustmentLayerSP KisLayerManager::addAdjustmentLayer(KisNodeSP activeNode, const QString & name,
                                                          KisFilterConfigurationSP  filter,
                                                          KisSelectionSP selection,
                                                          KisProcessingApplicator *applicator)
 {
     KisImageWSP image = m_view->image();
     KisAdjustmentLayerSP layer = new KisAdjustmentLayer(image, name, filter, selection);
     addLayerCommon(activeNode, layer, true, applicator);
 
     return layer;
 }
 
 KisNodeSP KisLayerManager::addGeneratorLayer(KisNodeSP activeNode)
 {
     KisImageWSP image = m_view->image();
     QColor currentForeground = m_view->canvasResourceProvider()->fgColor().toQColor();
 
 
     KisDlgGeneratorLayer dlg(image->nextLayerName(), m_view, m_view->mainWindow(), 0, 0);
     KisFilterConfigurationSP defaultConfig = dlg.configuration();
     defaultConfig->setProperty("color", currentForeground);
     dlg.setConfiguration(defaultConfig);
 
     dlg.resize(dlg.minimumSizeHint());
     if (dlg.exec() == QDialog::Accepted) {
         KisSelectionSP selection = m_view->selection();
         KisFilterConfigurationSP  generator = dlg.configuration();
         QString name = dlg.layerName();
 
         KisNodeSP node = new KisGeneratorLayer(image, name, generator, selection);
 
         addLayerCommon(activeNode, node, true, 0);
 
         return node;
     }
     return 0;
 }
 
 void KisLayerManager::flattenImage()
 {
     KisImageSP image = m_view->image();
 
     if (!m_view->blockUntilOperationsFinished(image)) return;
 
     if (image) {
         bool doIt = true;
 
         if (image->nHiddenLayers() > 0) {
             int answer = QMessageBox::warning(m_view->mainWindow(),
                                               i18nc("@title:window", "Flatten Image"),
                                               i18n("The image contains hidden layers that will be lost. Do you want to flatten the image?"),
                                               QMessageBox::Yes | QMessageBox::No,
                                               QMessageBox::No);
 
             if (answer != QMessageBox::Yes) {
                 doIt = false;
             }
         }
 
         if (doIt) {
             image->flatten(m_view->activeNode());
         }
     }
 }
 
 inline bool isSelectionMask(KisNodeSP node) {
     return dynamic_cast<KisSelectionMask*>(node.data());
 }
 
 bool tryMergeSelectionMasks(KisNodeSP currentNode, KisImageSP image)
 {
     bool result = false;
 
     KisNodeSP prevNode = currentNode->prevSibling();
     if (isSelectionMask(currentNode) &&
             prevNode && isSelectionMask(prevNode)) {
 
         QList<KisNodeSP> mergedNodes;
         mergedNodes.append(currentNode);
         mergedNodes.append(prevNode);
 
         image->mergeMultipleLayers(mergedNodes, currentNode);
 
         result = true;
     }
 
     return result;
 }
 
 bool tryFlattenGroupLayer(KisNodeSP currentNode, KisImageSP image)
 {
     bool result = false;
 
     if (currentNode->inherits("KisGroupLayer")) {
         KisGroupLayer *layer = qobject_cast<KisGroupLayer*>(currentNode.data());
         KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE(layer, false);
 
         image->flattenLayer(layer);
         result = true;
     }
 
     return result;
 }
 
 void KisLayerManager::mergeLayer()
 {
     KisImageSP image = m_view->image();
     if (!image) return;
 
     KisLayerSP layer = activeLayer();
     if (!layer) return;
 
     if (!m_view->blockUntilOperationsFinished(image)) return;
 
     QList<KisNodeSP> selectedNodes = m_view->nodeManager()->selectedNodes();
     if (selectedNodes.size() > 1) {
         image->mergeMultipleLayers(selectedNodes, m_view->activeNode());
     }
 
     else if (tryMergeSelectionMasks(m_view->activeNode(), image)) {
         // already done!
     } else if (tryFlattenGroupLayer(m_view->activeNode(), image)) {
         // already done!
     } else {
 
         if (!layer->prevSibling()) return;
         KisLayer *prevLayer = qobject_cast<KisLayer*>(layer->prevSibling().data());
         if (!prevLayer) return;
         if (prevLayer->userLocked()) {
             m_view->showFloatingMessage(
                         i18nc("floating message in layer manager",
                               "Layer is locked "),
                         QIcon(), 2000, KisFloatingMessage::Low);
         }
 
         else if (layer->metaData()->isEmpty() && prevLayer->metaData()->isEmpty()) {
             image->mergeDown(layer, KisMetaData::MergeStrategyRegistry::instance()->get("Drop"));
         }
         else {
             const KisMetaData::MergeStrategy* strategy = KisMetaDataMergeStrategyChooserWidget::showDialog(m_view->mainWindow());
             if (!strategy) return;
             image->mergeDown(layer, strategy);
         }
     }
 
     m_view->updateGUI();
 }
 
 void KisLayerManager::flattenLayer()
 {
     KisImageSP image = m_view->image();
     if (!image) return;
 
     KisLayerSP layer = activeLayer();
     if (!layer) return;
 
     if (!m_view->blockUntilOperationsFinished(image)) return;
 
     convertNodeToPaintLayer(layer);
     m_view->updateGUI();
 }
 
 void KisLayerManager::rasterizeLayer()
 {
     KisImageSP image = m_view->image();
     if (!image) return;
 
     KisLayerSP layer = activeLayer();
     if (!layer) return;
 
     if (!m_view->blockUntilOperationsFinished(image)) return;
 
     KisPaintLayerSP paintLayer = new KisPaintLayer(image, layer->name(), layer->opacity());
     KisPainter gc(paintLayer->paintDevice());
     QRect rc = layer->projection()->exactBounds();
     gc.bitBlt(rc.topLeft(), layer->projection(), rc);
 
     m_commandsAdapter->beginMacro(kundo2_i18n("Rasterize Layer"));
     m_commandsAdapter->addNode(paintLayer.data(), layer->parent().data(), layer.data());
 
     int childCount = layer->childCount();
     for (int i = 0; i < childCount; i++) {
         m_commandsAdapter->moveNode(layer->firstChild(), paintLayer, paintLayer->lastChild());
     }
     m_commandsAdapter->removeNode(layer);
     m_commandsAdapter->endMacro();
     updateGUI();
 }
 
 
 void KisLayerManager::layersUpdated()
 {
     KisLayerSP layer = activeLayer();
     if (!layer) return;
 
     m_view->updateGUI();
 }
 
 void KisLayerManager::saveGroupLayers()
 {
     QStringList listMimeFilter = KisImportExportManager::supportedMimeTypes(KisImportExportManager::Export);
 
     KoDialog dlg;
     QWidget *page = new QWidget(&dlg);
     dlg.setMainWidget(page);
     QBoxLayout *layout = new QVBoxLayout(page);
 
     KisFileNameRequester *urlRequester = new KisFileNameRequester(page);
     urlRequester->setMode(KoFileDialog::SaveFile);
     if (m_view->document()->url().isLocalFile()) {
         urlRequester->setStartDir(QFileInfo(m_view->document()->url().toLocalFile()).absolutePath());
     }
     urlRequester->setMimeTypeFilters(listMimeFilter);
     urlRequester->setFileName(m_view->document()->url().toLocalFile());
     layout->addWidget(urlRequester);
 
     QCheckBox *chkInvisible = new QCheckBox(i18n("Convert Invisible Groups"), page);
     chkInvisible->setChecked(false);
     layout->addWidget(chkInvisible);
     QCheckBox *chkDepth = new QCheckBox(i18n("Export Only Toplevel Groups"), page);
     chkDepth->setChecked(true);
     layout->addWidget(chkDepth);
 
     if (!dlg.exec()) return;
 
     QString path = urlRequester->fileName();
 
     if (path.isEmpty()) return;
 
     QFileInfo f(path);
 
     QString mimeType= KisMimeDatabase::mimeTypeForFile(f.fileName(), false);
     if (mimeType.isEmpty()) {
         mimeType = "image/png";
     }
     QString extension = KisMimeDatabase::suffixesForMimeType(mimeType).first();
     QString basename = f.baseName();
 
     KisImageSP image = m_view->image();
     if (!image) return;
 
     KisSaveGroupVisitor v(image, chkInvisible->isChecked(), chkDepth->isChecked(), f.absolutePath(), basename, extension, mimeType);
     image->rootLayer()->accept(v);
 
 }
 
 bool KisLayerManager::activeLayerHasSelection()
 {
     return (activeLayer()->selection() != 0);
 }
 
 KisNodeSP KisLayerManager::addFileLayer(KisNodeSP activeNode)
 {
     QString basePath;
     QUrl url = m_view->document()->url();
     if (url.isLocalFile()) {
         basePath = QFileInfo(url.toLocalFile()).absolutePath();
     }
     KisImageWSP image = m_view->image();
 
     KisDlgFileLayer dlg(basePath, image->nextLayerName(), m_view->mainWindow());
     dlg.resize(dlg.minimumSizeHint());
 
     if (dlg.exec() == QDialog::Accepted) {
         QString name = dlg.layerName();
         QString fileName = dlg.fileName();
 
         if(fileName.isEmpty()){
             QMessageBox::critical(m_view->mainWindow(), i18nc("@title:window", "Krita"), i18n("No file name specified"));
             return 0;
         }
 
         KisFileLayer::ScalingMethod scalingMethod = dlg.scaleToImageResolution();
         KisNodeSP node = new KisFileLayer(image, basePath, fileName, scalingMethod, name, OPACITY_OPAQUE_U8);
         addLayerCommon(activeNode, node, true, 0);
         return node;
     }
     return 0;
 }
 
 void updateLayerStyles(KisLayerSP layer, KisDlgLayerStyle *dlg)
 {
     KisSetLayerStyleCommand::updateLayerStyle(layer, dlg->style()->clone());
 }
 
 void KisLayerManager::layerStyle()
 {
     KisImageWSP image = m_view->image();
     if (!image) return;
 
     KisLayerSP layer = activeLayer();
     if (!layer) return;
 
     if (!m_view->blockUntilOperationsFinished(image)) return;
 
     KisPSDLayerStyleSP oldStyle;
     if (layer->layerStyle()) {
         oldStyle = layer->layerStyle()->clone();
     }
     else {
         oldStyle = toQShared(new KisPSDLayerStyle());
     }
 
     KisDlgLayerStyle dlg(oldStyle->clone(), m_view->canvasResourceProvider());
 
     std::function<void ()> updateCall(std::bind(updateLayerStyles, layer, &dlg));
     SignalToFunctionProxy proxy(updateCall);
     connect(&dlg, SIGNAL(configChanged()), &proxy, SLOT(start()));
 
     if (dlg.exec() == QDialog::Accepted) {
         KisPSDLayerStyleSP newStyle = dlg.style();
 
         KUndo2CommandSP command = toQShared(
                     new KisSetLayerStyleCommand(layer, oldStyle, newStyle));
 
         image->postExecutionUndoAdapter()->addCommand(command);
     }
 }
 
diff --git a/libs/ui/kis_layer_manager.h b/libs/ui/kis_layer_manager.h
index cbf813fc88..6bc545405a 100644
--- a/libs/ui/kis_layer_manager.h
+++ b/libs/ui/kis_layer_manager.h
@@ -1,134 +1,136 @@
 /*
  *  Copyright (C) 2006 Boudewijn Rempt <boud@valdyas.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 #ifndef KIS_LAYER_MANAGER
 #define KIS_LAYER_MANAGER
 
 #include <QObject>
 #include <QPointer>
 #include <QList>
 
 #include "kis_adjustment_layer.h"
 #include "kis_types.h"
 #include "KisView.h"
 #include <filter/kis_filter_configuration.h>
 
 class KisViewManager;
 class KisNodeCommandsAdapter;
 class KisAction;
 class KisActionManager;
 class KisProcessingApplicator;
 
 /**
  * KisLayerManager takes care of the gui around working with layers:
  * adding, removing, editing. It also keeps track of the active layer
  * for this view.
  */
 class KisLayerManager : public QObject
 {
 
     Q_OBJECT
 
 public:
 
     KisLayerManager(KisViewManager * view);
     ~KisLayerManager() override;
     void setView(QPointer<KisView>view);
 
 Q_SIGNALS:
 
     void sigLayerActivated(KisLayerSP layer);
 
 private:
 
     friend class KisNodeManager;
 
     /**
      * Activate the specified layer. The layer may be 0.
      */
     void activateLayer(KisLayerSP layer);
 
     KisLayerSP activeLayer();
     KisPaintDeviceSP activeDevice();
 
 
     void setup(KisActionManager *actionManager);
 
     void updateGUI();
 
 private Q_SLOTS:
 
     void mergeLayer();
 
     void imageResizeToActiveLayer();
     void trimToImage();
 
     void layerProperties();
 
     void flattenImage();
 
     void flattenLayer();
     void rasterizeLayer();
 
     void layersUpdated();
 
     void saveGroupLayers();
     bool activeLayerHasSelection();
 
     void convertNodeToPaintLayer(KisNodeSP source);
     void convertGroupToAnimated();
 
     void convertLayerToFileLayer(KisNodeSP source);
 
     KisLayerSP addPaintLayer(KisNodeSP activeNode);
     KisNodeSP addGroupLayer(KisNodeSP activeNode);
 
     KisNodeSP addCloneLayer(KisNodeSP activeNode);
 
     KisNodeSP addShapeLayer(KisNodeSP activeNode);
 
     KisNodeSP addAdjustmentLayer(KisNodeSP activeNode);
     KisAdjustmentLayerSP addAdjustmentLayer(KisNodeSP activeNode, const QString & name, KisFilterConfigurationSP  filter, KisSelectionSP selection, KisProcessingApplicator *applicator);
 
     KisNodeSP addGeneratorLayer(KisNodeSP activeNode);
 
     KisNodeSP addFileLayer(KisNodeSP activeNode);
 
     void layerStyle();
 
+    void changeCloneSource();
+
 private:
     void adjustLayerPosition(KisNodeSP node, KisNodeSP activeNode, KisNodeSP &parent, KisNodeSP &above);
     void addLayerCommon(KisNodeSP activeNode, KisNodeSP layer, bool updateImage = true, KisProcessingApplicator *applicator = 0);
 
 private:
 
     KisViewManager * m_view;
     QPointer<KisView>m_imageView;
 
     KisAction *m_imageFlatten;
     KisAction *m_imageMergeLayer;
     KisAction *m_groupLayersSave;
     KisAction *m_convertGroupAnimated;
     KisAction *m_imageResizeToLayer;
     KisAction *m_flattenLayer;
     KisAction *m_rasterizeLayer;
     KisNodeCommandsAdapter* m_commandsAdapter;
 
     KisAction *m_layerStyle;
 };
 
 #endif
diff --git a/libs/ui/kis_node_manager.cpp b/libs/ui/kis_node_manager.cpp
index 1bc9289307..5715d6358e 100644
--- a/libs/ui/kis_node_manager.cpp
+++ b/libs/ui/kis_node_manager.cpp
@@ -1,1558 +1,1563 @@
 /*
  *  Copyright (C) 2007 Boudewijn Rempt <boud@valdyas.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
 #include "kis_node_manager.h"
 
 #include <QStandardPaths>
 #include <QMessageBox>
 #include <QSignalMapper>
 #include <QApplication>
 #include <QMessageBox>
 
 #include <kactioncollection.h>
 
 #include <QKeySequence>
 
 #include <kis_icon.h>
 #include <KoSelection.h>
 #include <KoShapeManager.h>
 #include <KoShape.h>
 #include <KoShapeLayer.h>
 #include <KisImportExportManager.h>
 #include <KoFileDialog.h>
 #include <KoToolManager.h>
 #include <KoProperties.h>
 
 #include <KoColorSpace.h>
 #include <KoColorSpaceRegistry.h>
 #include <KoColorModelStandardIds.h>
 
 #include <kis_types.h>
 #include <kis_node.h>
 #include <kis_selection.h>
 #include <kis_selection_mask.h>
 #include <kis_layer.h>
 #include <kis_mask.h>
 #include <kis_image.h>
 #include <kis_painter.h>
 #include <kis_paint_layer.h>
 #include <KisMimeDatabase.h>
 #include <KisReferenceImagesLayer.h>
 
 #include "KisPart.h"
 #include "canvas/kis_canvas2.h"
 #include "kis_shape_controller.h"
 #include "kis_canvas_resource_provider.h"
 #include "KisViewManager.h"
 #include "KisDocument.h"
 #include "kis_mask_manager.h"
 #include "kis_group_layer.h"
 #include "kis_layer_manager.h"
 #include "kis_selection_manager.h"
 #include "kis_node_commands_adapter.h"
 #include "kis_action.h"
 #include "kis_action_manager.h"
 #include "kis_processing_applicator.h"
 #include "kis_sequential_iterator.h"
 #include "kis_transaction.h"
 #include "kis_node_selection_adapter.h"
 #include "kis_node_insertion_adapter.h"
 #include "kis_node_juggler_compressed.h"
 #include "KisNodeDisplayModeAdapter.h"
 #include "kis_clipboard.h"
 #include "kis_node_dummies_graph.h"
 #include "kis_mimedata.h"
 #include "kis_layer_utils.h"
 #include "krita_utils.h"
 #include "kis_shape_layer.h"
 
 #include "processing/kis_mirror_processing_visitor.h"
 #include "KisView.h"
 
 #include <kis_signals_blocker.h>
 #include <libs/image/kis_layer_properties_icons.h>
 #include <libs/image/commands/kis_node_property_list_command.h>
 
 struct KisNodeManager::Private {
 
     Private(KisNodeManager *_q, KisViewManager *v)
         : q(_q)
         , view(v)
         , imageView(0)
         , layerManager(v)
         , maskManager(v)
         , commandsAdapter(v)
         , nodeSelectionAdapter(new KisNodeSelectionAdapter(q))
         , nodeInsertionAdapter(new KisNodeInsertionAdapter(q))
         , nodeDisplayModeAdapter(new KisNodeDisplayModeAdapter())
         , lastRequestedIsolatedModeStatus(false)
     {
     }
 
     KisNodeManager * q;
     KisViewManager * view;
     QPointer<KisView>imageView;
     KisLayerManager layerManager;
     KisMaskManager maskManager;
     KisNodeCommandsAdapter commandsAdapter;
     QScopedPointer<KisNodeSelectionAdapter> nodeSelectionAdapter;
     QScopedPointer<KisNodeInsertionAdapter> nodeInsertionAdapter;
     QScopedPointer<KisNodeDisplayModeAdapter> nodeDisplayModeAdapter;
 
     KisAction *showInTimeline;
 
     KisNodeList selectedNodes;
     QPointer<KisNodeJugglerCompressed> nodeJuggler;
 
     KisNodeWSP previouslyActiveNode;
 
     bool activateNodeImpl(KisNodeSP node);
 
     QSignalMapper nodeCreationSignalMapper;
     QSignalMapper nodeConversionSignalMapper;
 
     bool lastRequestedIsolatedModeStatus;
 
     void saveDeviceAsImage(KisPaintDeviceSP device,
                            const QString &defaultName,
                            const QRect &bounds,
                            qreal xRes,
                            qreal yRes,
                            quint8 opacity);
 
     void mergeTransparencyMaskAsAlpha(bool writeToLayers);
     KisNodeJugglerCompressed* lazyGetJuggler(const KUndo2MagicString &actionName);
 };
 
 bool KisNodeManager::Private::activateNodeImpl(KisNodeSP node)
 {
     Q_ASSERT(view);
     Q_ASSERT(view->canvasBase());
     Q_ASSERT(view->canvasBase()->globalShapeManager());
     Q_ASSERT(imageView);
     if (node && node == q->activeNode()) {
         return false;
     }
 
     // Set the selection on the shape manager to the active layer
     // and set call KoSelection::setActiveLayer( KoShapeLayer* layer )
     // with the parent of the active layer.
     KoSelection *selection = view->canvasBase()->globalShapeManager()->selection();
     Q_ASSERT(selection);
     selection->deselectAll();
 
     if (!node) {
         selection->setActiveLayer(0);
         imageView->setCurrentNode(0);
         maskManager.activateMask(0);
         layerManager.activateLayer(0);
         previouslyActiveNode = q->activeNode();
     } else {
 
         previouslyActiveNode = q->activeNode();
 
         KoShape * shape = view->document()->shapeForNode(node);
 
         //if (!shape) return false;
         KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE(shape, false);
 
         selection->select(shape);
         KoShapeLayer * shapeLayer = dynamic_cast<KoShapeLayer*>(shape);
 
         //if (!shapeLayer) return false;
         KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE(shapeLayer, false);
 
 //         shapeLayer->setGeometryProtected(node->userLocked());
 //         shapeLayer->setVisible(node->visible());
         selection->setActiveLayer(shapeLayer);
 
         imageView->setCurrentNode(node);
         if (KisLayerSP layer = qobject_cast<KisLayer*>(node.data())) {
             maskManager.activateMask(0);
             layerManager.activateLayer(layer);
         } else if (KisMaskSP mask = dynamic_cast<KisMask*>(node.data())) {
             maskManager.activateMask(mask);
             // XXX_NODE: for now, masks cannot be nested.
             layerManager.activateLayer(static_cast<KisLayer*>(node->parent().data()));
         }
     }
     return true;
 }
 
 KisNodeManager::KisNodeManager(KisViewManager *view)
     : m_d(new Private(this, view))
 {
 
     connect(&m_d->layerManager, SIGNAL(sigLayerActivated(KisLayerSP)), SIGNAL(sigLayerActivated(KisLayerSP)));
 }
 
 KisNodeManager::~KisNodeManager()
 {
     delete m_d;
 }
 
 void KisNodeManager::setView(QPointer<KisView>imageView)
 {
     m_d->maskManager.setView(imageView);
     m_d->layerManager.setView(imageView);
 
     if (m_d->imageView) {
         KisShapeController *shapeController = dynamic_cast<KisShapeController*>(m_d->imageView->document()->shapeController());
         Q_ASSERT(shapeController);
         shapeController->disconnect(SIGNAL(sigActivateNode(KisNodeSP)), this);
         m_d->imageView->image()->disconnect(this);
     }
 
     m_d->imageView = imageView;
 
     if (m_d->imageView) {
         KisShapeController *shapeController = dynamic_cast<KisShapeController*>(m_d->imageView->document()->shapeController());
         Q_ASSERT(shapeController);
         connect(shapeController, SIGNAL(sigActivateNode(KisNodeSP)), SLOT(slotNonUiActivatedNode(KisNodeSP)));
         connect(m_d->imageView->image(), SIGNAL(sigIsolatedModeChanged()),this, SLOT(slotUpdateIsolateModeActionImageStatusChange()));
         connect(m_d->imageView->image(), SIGNAL(sigRequestNodeReselection(KisNodeSP,KisNodeList)),this, SLOT(slotImageRequestNodeReselection(KisNodeSP,KisNodeList)));
         m_d->imageView->resourceProvider()->slotNodeActivated(m_d->imageView->currentNode());
     }
 
 }
 
 #define NEW_LAYER_ACTION(id, layerType)                                 \
     {                                                                   \
         action = actionManager->createAction(id);                       \
         m_d->nodeCreationSignalMapper.setMapping(action, layerType);    \
         connect(action, SIGNAL(triggered()),                            \
                 &m_d->nodeCreationSignalMapper, SLOT(map()));           \
     }
 
 #define CONVERT_NODE_ACTION_2(id, layerType, exclude)                   \
     {                                                                   \
         action = actionManager->createAction(id);                       \
         action->setExcludedNodeTypes(QStringList(exclude));             \
         actionManager->addAction(id, action);                           \
         m_d->nodeConversionSignalMapper.setMapping(action, layerType);  \
         connect(action, SIGNAL(triggered()),                            \
                 &m_d->nodeConversionSignalMapper, SLOT(map()));         \
     }
 
 #define CONVERT_NODE_ACTION(id, layerType)              \
     CONVERT_NODE_ACTION_2(id, layerType, layerType)
 
 void KisNodeManager::setup(KActionCollection * actionCollection, KisActionManager* actionManager)
 {
     m_d->layerManager.setup(actionManager);
     m_d->maskManager.setup(actionCollection, actionManager);
 
     KisAction * action = 0;
 
     action = actionManager->createAction("mirrorNodeX");
     connect(action, SIGNAL(triggered()), this, SLOT(mirrorNodeX()));
 
     action  = actionManager->createAction("mirrorNodeY");
     connect(action, SIGNAL(triggered()), this, SLOT(mirrorNodeY()));
 
     action = actionManager->createAction("mirrorAllNodesX");
     connect(action, SIGNAL(triggered()), this, SLOT(mirrorAllNodesX()));
 
     action  = actionManager->createAction("mirrorAllNodesY");
     connect(action, SIGNAL(triggered()), this, SLOT(mirrorAllNodesY()));
 
     action = actionManager->createAction("activateNextLayer");
     connect(action, SIGNAL(triggered()), this, SLOT(activateNextNode()));
 
     action = actionManager->createAction("activatePreviousLayer");
     connect(action, SIGNAL(triggered()), this, SLOT(activatePreviousNode()));
 
     action = actionManager->createAction("switchToPreviouslyActiveNode");
     connect(action, SIGNAL(triggered()), this, SLOT(switchToPreviouslyActiveNode()));
 
     action  = actionManager->createAction("save_node_as_image");
     connect(action, SIGNAL(triggered()), this, SLOT(saveNodeAsImage()));
 
     action  = actionManager->createAction("save_vector_node_to_svg");
     connect(action, SIGNAL(triggered()), this, SLOT(saveVectorLayerAsImage()));
     action->setActivationFlags(KisAction::ACTIVE_SHAPE_LAYER);
 
     action = actionManager->createAction("duplicatelayer");
     connect(action, SIGNAL(triggered()), this, SLOT(duplicateActiveNode()));
 
     action = actionManager->createAction("copy_layer_clipboard");
     connect(action, SIGNAL(triggered()), this, SLOT(copyLayersToClipboard()));
 
     action = actionManager->createAction("cut_layer_clipboard");
     connect(action, SIGNAL(triggered()), this, SLOT(cutLayersToClipboard()));
 
     action = actionManager->createAction("paste_layer_from_clipboard");
     connect(action, SIGNAL(triggered()), this, SLOT(pasteLayersFromClipboard()));
 
     action = actionManager->createAction("create_quick_group");
     connect(action, SIGNAL(triggered()), this, SLOT(createQuickGroup()));
 
     action = actionManager->createAction("create_quick_clipping_group");
     connect(action, SIGNAL(triggered()), this, SLOT(createQuickClippingGroup()));
 
     action = actionManager->createAction("quick_ungroup");
     connect(action, SIGNAL(triggered()), this, SLOT(quickUngroup()));
 
     action = actionManager->createAction("select_all_layers");
     connect(action, SIGNAL(triggered()), this, SLOT(selectAllNodes()));
 
     action = actionManager->createAction("select_visible_layers");
     connect(action, SIGNAL(triggered()), this, SLOT(selectVisibleNodes()));
 
     action = actionManager->createAction("select_locked_layers");
     connect(action, SIGNAL(triggered()), this, SLOT(selectLockedNodes()));
 
     action = actionManager->createAction("select_invisible_layers");
     connect(action, SIGNAL(triggered()), this, SLOT(selectInvisibleNodes()));
 
     action = actionManager->createAction("select_unlocked_layers");
     connect(action, SIGNAL(triggered()), this, SLOT(selectUnlockedNodes()));
 
     action = actionManager->createAction("new_from_visible");
     connect(action, SIGNAL(triggered()), this, SLOT(createFromVisible()));
 
     action = actionManager->createAction("show_in_timeline");
     action->setCheckable(true);
     connect(action, SIGNAL(toggled(bool)), this, SLOT(slotShowHideTimeline(bool)));
     m_d->showInTimeline = action;
 
     NEW_LAYER_ACTION("add_new_paint_layer", "KisPaintLayer");
 
     NEW_LAYER_ACTION("add_new_group_layer", "KisGroupLayer");
 
     NEW_LAYER_ACTION("add_new_clone_layer", "KisCloneLayer");
 
     NEW_LAYER_ACTION("add_new_shape_layer", "KisShapeLayer");
 
     NEW_LAYER_ACTION("add_new_adjustment_layer", "KisAdjustmentLayer");
 
     NEW_LAYER_ACTION("add_new_fill_layer", "KisGeneratorLayer");
 
     NEW_LAYER_ACTION("add_new_file_layer", "KisFileLayer");
 
     NEW_LAYER_ACTION("add_new_transparency_mask", "KisTransparencyMask");
 
     NEW_LAYER_ACTION("add_new_filter_mask", "KisFilterMask");
 
     NEW_LAYER_ACTION("add_new_colorize_mask", "KisColorizeMask");
 
     NEW_LAYER_ACTION("add_new_transform_mask", "KisTransformMask");
 
     NEW_LAYER_ACTION("add_new_selection_mask", "KisSelectionMask");
 
     connect(&m_d->nodeCreationSignalMapper, SIGNAL(mapped(QString)),
             this, SLOT(createNode(QString)));
 
     CONVERT_NODE_ACTION("convert_to_paint_layer", "KisPaintLayer");
 
     CONVERT_NODE_ACTION_2("convert_to_selection_mask", "KisSelectionMask", QStringList() << "KisSelectionMask" << "KisColorizeMask");
 
     CONVERT_NODE_ACTION_2("convert_to_filter_mask", "KisFilterMask", QStringList() << "KisFilterMask" << "KisColorizeMask");
 
     CONVERT_NODE_ACTION_2("convert_to_transparency_mask", "KisTransparencyMask", QStringList() << "KisTransparencyMask" << "KisColorizeMask");
 
     CONVERT_NODE_ACTION("convert_to_animated", "animated");
 
     CONVERT_NODE_ACTION_2("convert_to_file_layer", "KisFileLayer", QStringList() << "KisGroupLayer" << "KisFileLayer" << "KisCloneLayer");
 
     connect(&m_d->nodeConversionSignalMapper, SIGNAL(mapped(QString)),
             this, SLOT(convertNode(QString)));
 
     action = actionManager->createAction("isolate_layer");
     connect(action, SIGNAL(triggered(bool)), this, SLOT(toggleIsolateMode(bool)));
 
     action = actionManager->createAction("toggle_layer_visibility");
     connect(action, SIGNAL(triggered()), this, SLOT(toggleVisibility()));
 
     action = actionManager->createAction("toggle_layer_lock");
     connect(action, SIGNAL(triggered()), this, SLOT(toggleLock()));
 
     action = actionManager->createAction("toggle_layer_inherit_alpha");
     connect(action, SIGNAL(triggered()), this, SLOT(toggleInheritAlpha()));
 
     action = actionManager->createAction("toggle_layer_alpha_lock");
     connect(action, SIGNAL(triggered()), this, SLOT(toggleAlphaLock()));
 
     action  = actionManager->createAction("split_alpha_into_mask");
     connect(action, SIGNAL(triggered()), this, SLOT(slotSplitAlphaIntoMask()));
 
     action  = actionManager->createAction("split_alpha_write");
     connect(action, SIGNAL(triggered()), this, SLOT(slotSplitAlphaWrite()));
 
     // HINT: we can save even when the nodes are not editable
     action  = actionManager->createAction("split_alpha_save_merged");
     connect(action, SIGNAL(triggered()), this, SLOT(slotSplitAlphaSaveMerged()));
 
     connect(this, SIGNAL(sigNodeActivated(KisNodeSP)), SLOT(slotUpdateIsolateModeAction()));
     connect(this, SIGNAL(sigNodeActivated(KisNodeSP)), SLOT(slotTryRestartIsolatedMode()));
 }
 
 void KisNodeManager::updateGUI()
 {
     // enable/disable all relevant actions
     m_d->layerManager.updateGUI();
     m_d->maskManager.updateGUI();
 }
 
 KisNodeSP KisNodeManager::activeNode()
 {
     if (m_d->imageView) {
         return m_d->imageView->currentNode();
     }
     return 0;
 }
 
 KisLayerSP KisNodeManager::activeLayer()
 {
     return m_d->layerManager.activeLayer();
 }
 
 const KoColorSpace* KisNodeManager::activeColorSpace()
 {
     if (m_d->maskManager.activeDevice()) {
         return m_d->maskManager.activeDevice()->colorSpace();
     } else {
         Q_ASSERT(m_d->layerManager.activeLayer());
         if (m_d->layerManager.activeLayer()->parentLayer())
             return m_d->layerManager.activeLayer()->parentLayer()->colorSpace();
         else
             return m_d->view->image()->colorSpace();
     }
 }
 
 void KisNodeManager::moveNodeAt(KisNodeSP node, KisNodeSP parent, int index)
 {
     if (parent->allowAsChild(node)) {
         if (node->inherits("KisSelectionMask") && parent->inherits("KisLayer")) {
             KisSelectionMask *m = dynamic_cast<KisSelectionMask*>(node.data());
             KisLayer *l = qobject_cast<KisLayer*>(parent.data());
             if (m && m->active() && l && l->selectionMask()) {
                 l->selectionMask()->setActive(false);
             }
         }
         m_d->commandsAdapter.moveNode(node, parent, index);
     }
 }
 
 void KisNodeManager::moveNodesDirect(KisNodeList nodes, KisNodeSP parent, KisNodeSP aboveThis)
 {
     KUndo2MagicString actionName = kundo2_i18n("Move Nodes");
     KisNodeJugglerCompressed *juggler = m_d->lazyGetJuggler(actionName);
     juggler->moveNode(nodes, parent, aboveThis);
 }
 
 void KisNodeManager::copyNodesDirect(KisNodeList nodes, KisNodeSP parent, KisNodeSP aboveThis)
 {
     KUndo2MagicString actionName = kundo2_i18n("Copy Nodes");
     KisNodeJugglerCompressed *juggler = m_d->lazyGetJuggler(actionName);
     juggler->copyNode(nodes, parent, aboveThis);
 }
 
 void KisNodeManager::addNodesDirect(KisNodeList nodes, KisNodeSP parent, KisNodeSP aboveThis)
 {
     KUndo2MagicString actionName = kundo2_i18n("Add Nodes");
     KisNodeJugglerCompressed *juggler = m_d->lazyGetJuggler(actionName);
     juggler->addNode(nodes, parent, aboveThis);
 }
 
 void KisNodeManager::toggleIsolateActiveNode()
 {
     KisImageWSP image = m_d->view->image();
     KisNodeSP activeNode = this->activeNode();
     KIS_ASSERT_RECOVER_RETURN(activeNode);
 
     if (activeNode == image->isolatedModeRoot()) {
         toggleIsolateMode(false);
     } else {
         toggleIsolateMode(true);
     }
 }
 
 void KisNodeManager::toggleIsolateMode(bool checked)
 {
     KisImageWSP image = m_d->view->image();
 
     KisNodeSP activeNode = this->activeNode();
     if (checked && activeNode) {
 
         // Transform and colorize masks don't have pixel data...
         if (activeNode->inherits("KisTransformMask") ||
             activeNode->inherits("KisColorizeMask")) return;
 
         if (!image->startIsolatedMode(activeNode)) {
             KisAction *action = m_d->view->actionManager()->actionByName("isolate_layer");
             action->setChecked(false);
         }
     } else {
         image->stopIsolatedMode();
     }
 
     m_d->lastRequestedIsolatedModeStatus = checked;
 }
 
 void KisNodeManager::slotUpdateIsolateModeActionImageStatusChange()
 {
     slotUpdateIsolateModeAction();
 
     KisNodeSP isolatedRootNode = m_d->view->image()->isolatedModeRoot();
     if (this->activeNode() &&
         bool(isolatedRootNode) != m_d->lastRequestedIsolatedModeStatus) {
 
         slotTryRestartIsolatedMode();
     }
 }
 
 void KisNodeManager::slotUpdateIsolateModeAction()
 {
     KisAction *action = m_d->view->actionManager()->actionByName("isolate_layer");
     Q_ASSERT(action);
 
     KisNodeSP activeNode = this->activeNode();
     KisNodeSP isolatedRootNode = m_d->view->image()->isolatedModeRoot();
 
     action->setChecked(isolatedRootNode && isolatedRootNode == activeNode);
 }
 
 void KisNodeManager::slotTryRestartIsolatedMode()
 {
     KisNodeSP isolatedRootNode = m_d->view->image()->isolatedModeRoot();
     if (!isolatedRootNode && !m_d->lastRequestedIsolatedModeStatus) return;
 
     this->toggleIsolateMode(true);
 }
 
 KisNodeSP  KisNodeManager::createNode(const QString & nodeType, bool quiet, KisPaintDeviceSP copyFrom)
 {
     if (!m_d->view->blockUntilOperationsFinished(m_d->view->image())) {
         return 0;
     }
 
     KisNodeSP activeNode = this->activeNode();
     if (!activeNode) {
         activeNode = m_d->view->image()->root();
     }
 
     KIS_ASSERT_RECOVER_RETURN_VALUE(activeNode, 0);
 
     // XXX: make factories for this kind of stuff,
     //      with a registry
 
     if (nodeType == "KisPaintLayer") {
         return m_d->layerManager.addPaintLayer(activeNode);
     } else if (nodeType == "KisGroupLayer") {
         return m_d->layerManager.addGroupLayer(activeNode);
     } else if (nodeType == "KisAdjustmentLayer") {
         return m_d->layerManager.addAdjustmentLayer(activeNode);
     } else if (nodeType == "KisGeneratorLayer") {
         return m_d->layerManager.addGeneratorLayer(activeNode);
     } else if (nodeType == "KisShapeLayer") {
         return m_d->layerManager.addShapeLayer(activeNode);
     } else if (nodeType == "KisCloneLayer") {
         return m_d->layerManager.addCloneLayer(activeNode);
     } else if (nodeType == "KisTransparencyMask") {
         return m_d->maskManager.createTransparencyMask(activeNode, copyFrom, false);
     } else if (nodeType == "KisFilterMask") {
         return m_d->maskManager.createFilterMask(activeNode, copyFrom, quiet, false);
     } else if (nodeType == "KisColorizeMask") {
         return m_d->maskManager.createColorizeMask(activeNode);
     } else if (nodeType == "KisTransformMask") {
         return m_d->maskManager.createTransformMask(activeNode);
     } else if (nodeType == "KisSelectionMask") {
         return m_d->maskManager.createSelectionMask(activeNode, copyFrom, false);
     } else if (nodeType == "KisFileLayer") {
         return m_d->layerManager.addFileLayer(activeNode);
     }
     return 0;
 }
 
 void KisNodeManager::createFromVisible()
 {
     KisLayerUtils::newLayerFromVisible(m_d->view->image(), m_d->view->image()->root()->lastChild());
 }
 
 void KisNodeManager::slotShowHideTimeline(bool value)
 {
     Q_FOREACH (KisNodeSP node, selectedNodes()) {
         node->setUseInTimeline(value);
     }
 }
 
 KisLayerSP KisNodeManager::createPaintLayer()
 {
     KisNodeSP node = createNode("KisPaintLayer");
     return dynamic_cast<KisLayer*>(node.data());
 }
 
 void KisNodeManager::convertNode(const QString &nodeType)
 {
     if (!m_d->view->blockUntilOperationsFinished(m_d->view->image())) {
         return;
     }
 
     KisNodeSP activeNode = this->activeNode();
     if (!activeNode) return;
 
     if (nodeType == "KisPaintLayer") {
         m_d->layerManager.convertNodeToPaintLayer(activeNode);
     } else if (nodeType == "KisSelectionMask" ||
                nodeType == "KisFilterMask" ||
                nodeType == "KisTransparencyMask") {
 
         KisPaintDeviceSP copyFrom = activeNode->paintDevice() ?
             activeNode->paintDevice() : activeNode->projection();
 
         m_d->commandsAdapter.beginMacro(kundo2_i18n("Convert to a Selection Mask"));
 
         bool result = false;
 
         if (nodeType == "KisSelectionMask") {
             result = !m_d->maskManager.createSelectionMask(activeNode, copyFrom, true).isNull();
         } else if (nodeType == "KisFilterMask") {
             result = !m_d->maskManager.createFilterMask(activeNode, copyFrom, false, true).isNull();
         } else if (nodeType == "KisTransparencyMask") {
             result = !m_d->maskManager.createTransparencyMask(activeNode, copyFrom, true).isNull();
         }
 
         m_d->commandsAdapter.endMacro();
 
         if (!result) {
             m_d->view->blockUntilOperationsFinishedForced(m_d->imageView->image());
             m_d->commandsAdapter.undoLastCommand();
         }
 
     } else if (nodeType == "KisFileLayer") {
             m_d->layerManager.convertLayerToFileLayer(activeNode);
     } else {
         warnKrita << "Unsupported node conversion type:" << nodeType;
     }
 }
 
 void KisNodeManager::slotSomethingActivatedNodeImpl(KisNodeSP node)
 {
     KisDummiesFacadeBase *dummiesFacade = dynamic_cast<KisDummiesFacadeBase*>(m_d->imageView->document()->shapeController());
     KIS_SAFE_ASSERT_RECOVER_RETURN(dummiesFacade);
 
     const bool nodeVisible = !isNodeHidden(node, !m_d->nodeDisplayModeAdapter->showGlobalSelectionMask());
     if (!nodeVisible) {
         return;
     }
 
     KIS_ASSERT_RECOVER_RETURN(node != activeNode());
     if (m_d->activateNodeImpl(node)) {
         emit sigUiNeedChangeActiveNode(node);
         emit sigNodeActivated(node);
         nodesUpdated();
         if (node) {
             bool toggled =  m_d->view->actionCollection()->action("view_show_canvas_only")->isChecked();
             if (toggled) {
                 m_d->view->showFloatingMessage( activeLayer()->name(), QIcon(), 1600, KisFloatingMessage::Medium, Qt::TextSingleLine);
             }
         }
     }
 }
 
 void KisNodeManager::slotNonUiActivatedNode(KisNodeSP node)
 {
     // the node must still be in the graph, some asynchronous
     // signals may easily break this requirement
     if (node && !node->graphListener()) {
         node = 0;
     }
 
     if (node == activeNode()) return;
 
     slotSomethingActivatedNodeImpl(node);
 
     if (node) {
         bool toggled =  m_d->view->actionCollection()->action("view_show_canvas_only")->isChecked();
         if (toggled) {
             m_d->view->showFloatingMessage( activeLayer()->name(), QIcon(), 1600, KisFloatingMessage::Medium, Qt::TextSingleLine);
         }
     }
 }
 
 void KisNodeManager::slotUiActivatedNode(KisNodeSP node)
 {
     // the node must still be in the graph, some asynchronous
     // signals may easily break this requirement
     if (node && !node->graphListener()) {
         node = 0;
     }
 
     if (node) {
         QStringList vectorTools = QStringList()
                 << "InteractionTool"
                 << "KarbonPatternTool"
                 << "KarbonGradientTool"
                 << "KarbonCalligraphyTool"
                 << "CreateShapesTool"
                 << "PathTool";
 
         QStringList pixelTools = QStringList()
                 << "KritaShape/KisToolBrush"
                 << "KritaShape/KisToolDyna"
                 << "KritaShape/KisToolMultiBrush"
                 << "KritaFill/KisToolFill"
                 << "KritaFill/KisToolGradient";
 
 
         KisSelectionMask *selectionMask = dynamic_cast<KisSelectionMask*>(node.data());
         const bool nodeHasVectorAbilities = node->inherits("KisShapeLayer") ||
             (selectionMask && selectionMask->selection()->hasShapeSelection());
 
         if (nodeHasVectorAbilities) {
             if (pixelTools.contains(KoToolManager::instance()->activeToolId())) {
                 KoToolManager::instance()->switchToolRequested("InteractionTool");
             }
         }
         else {
             if (vectorTools.contains(KoToolManager::instance()->activeToolId())) {
                 KoToolManager::instance()->switchToolRequested("KritaShape/KisToolBrush");
             }
         }
     }
 
     if (node == activeNode()) return;
 
     slotSomethingActivatedNodeImpl(node);
 }
 
 void KisNodeManager::nodesUpdated()
 {
     KisNodeSP node = activeNode();
     if (!node) return;
 
     m_d->layerManager.layersUpdated();
     m_d->maskManager.masksUpdated();
 
     m_d->view->updateGUI();
     m_d->view->selectionManager()->selectionChanged();
 
     {
         KisSignalsBlocker b(m_d->showInTimeline);
         m_d->showInTimeline->setChecked(node->useInTimeline());
     }
 }
 
 KisPaintDeviceSP KisNodeManager::activePaintDevice()
 {
     return m_d->maskManager.activeMask() ?
         m_d->maskManager.activeDevice() :
         m_d->layerManager.activeDevice();
 }
 
 void KisNodeManager::nodeProperties(KisNodeSP node)
 {
     if ((selectedNodes().size() > 1 && node->inherits("KisLayer")) || node->inherits("KisLayer")) {
         m_d->layerManager.layerProperties();
     }
     else if (node->inherits("KisMask")) {
         m_d->maskManager.maskProperties();
     }
 }
 
+void KisNodeManager::changeCloneSource()
+{
+    m_d->layerManager.changeCloneSource();
+}
+
 qint32 KisNodeManager::convertOpacityToInt(qreal opacity)
 {
     /**
      * Scales opacity from the range 0...100
      * to the integer range 0...255
      */
 
     return qMin(255, int(opacity * 2.55 + 0.5));
 }
 
 void KisNodeManager::setNodeOpacity(KisNodeSP node, qint32 opacity)
 {
     if (!node) return;
     if (node->opacity() == opacity) return;
 
     m_d->commandsAdapter.setOpacity(node, opacity);
 }
 
 void KisNodeManager::setNodeCompositeOp(KisNodeSP node,
                                         const KoCompositeOp* compositeOp)
 {
     if (!node) return;
     if (node->compositeOp() == compositeOp) return;
 
     m_d->commandsAdapter.setCompositeOp(node, compositeOp);
 }
 
 void KisNodeManager::slotImageRequestNodeReselection(KisNodeSP activeNode, const KisNodeList &selectedNodes)
 {
     if (activeNode) {
         slotNonUiActivatedNode(activeNode);
     }
     if (!selectedNodes.isEmpty()) {
         slotSetSelectedNodes(selectedNodes);
     }
 }
 
 void KisNodeManager::slotSetSelectedNodes(const KisNodeList &nodes)
 {
     m_d->selectedNodes = nodes;
     emit sigUiNeedChangeSelectedNodes(nodes);
 }
 
 KisNodeList KisNodeManager::selectedNodes()
 {
     return m_d->selectedNodes;
 }
 
 KisNodeSelectionAdapter* KisNodeManager::nodeSelectionAdapter() const
 {
     return m_d->nodeSelectionAdapter.data();
 }
 
 KisNodeInsertionAdapter* KisNodeManager::nodeInsertionAdapter() const
 {
     return m_d->nodeInsertionAdapter.data();
 }
 
 KisNodeDisplayModeAdapter *KisNodeManager::nodeDisplayModeAdapter() const
 {
     return m_d->nodeDisplayModeAdapter.data();
 }
 
 bool KisNodeManager::isNodeHidden(KisNodeSP node, bool isGlobalSelectionHidden)
 {
     if (dynamic_cast<KisReferenceImagesLayer *>(node.data())) {
         return true;
     }
 
     if (isGlobalSelectionHidden && dynamic_cast<KisSelectionMask *>(node.data()) &&
         (!node->parent() || !node->parent()->parent())) {
         return true;
     }
 
     return false;
 }
 
 bool KisNodeManager::trySetNodeProperties(KisNodeSP node, KisImageSP image, KisBaseNode::PropertyList properties) const
 {
     const KisPaintLayer *paintLayer = dynamic_cast<KisPaintLayer*>(node.data());
     if (paintLayer) {
         const auto onionSkinOn = KisLayerPropertiesIcons::getProperty(KisLayerPropertiesIcons::onionSkins, true);
 
         if (properties.contains(onionSkinOn)) {
             const KisPaintDeviceSP &paintDevice = paintLayer->paintDevice();
             if (paintDevice && paintDevice->defaultPixel().opacityU8() == 255) {
                 m_d->view->showFloatingMessage(i18n("Onion skins require a layer with transparent background."), QIcon());
                 return false;
             }
         }
     }
 
     KisNodePropertyListCommand::setNodePropertiesNoUndo(node, image, properties);
 
     return true;
 }
 
 void KisNodeManager::nodeOpacityChanged(qreal opacity)
 {
     KisNodeSP node = activeNode();
 
     setNodeOpacity(node, convertOpacityToInt(opacity));
 }
 
 void KisNodeManager::nodeCompositeOpChanged(const KoCompositeOp* op)
 {
     KisNodeSP node = activeNode();
 
     setNodeCompositeOp(node, op);
 }
 
 void KisNodeManager::duplicateActiveNode()
 {
     KUndo2MagicString actionName = kundo2_i18n("Duplicate Nodes");
     KisNodeJugglerCompressed *juggler = m_d->lazyGetJuggler(actionName);
     juggler->duplicateNode(selectedNodes());
 }
 
 KisNodeJugglerCompressed* KisNodeManager::Private::lazyGetJuggler(const KUndo2MagicString &actionName)
 {
     KisImageWSP image = view->image();
 
     if (!nodeJuggler ||
         (nodeJuggler &&
          (nodeJuggler->isEnded() ||
           !nodeJuggler->canMergeAction(actionName)))) {
 
         nodeJuggler = new KisNodeJugglerCompressed(actionName, image, q, 750);
         nodeJuggler->setAutoDelete(true);
     }
 
     return nodeJuggler;
 }
 
 void KisNodeManager::raiseNode()
 {
     KUndo2MagicString actionName = kundo2_i18n("Raise Nodes");
     KisNodeJugglerCompressed *juggler = m_d->lazyGetJuggler(actionName);
     juggler->raiseNode(selectedNodes());
 }
 
 void KisNodeManager::lowerNode()
 {
     KUndo2MagicString actionName = kundo2_i18n("Lower Nodes");
     KisNodeJugglerCompressed *juggler = m_d->lazyGetJuggler(actionName);
     juggler->lowerNode(selectedNodes());
 }
 
 void KisNodeManager::removeSingleNode(KisNodeSP node)
 {
     if (!node || !node->parent()) {
         return;
     }
 
     KisNodeList nodes;
     nodes << node;
     removeSelectedNodes(nodes);
 }
 
 void KisNodeManager::removeSelectedNodes(KisNodeList nodes)
 {
     KUndo2MagicString actionName = kundo2_i18n("Remove Nodes");
     KisNodeJugglerCompressed *juggler = m_d->lazyGetJuggler(actionName);
     juggler->removeNode(nodes);
 }
 
 void KisNodeManager::removeNode()
 {
     removeSelectedNodes(selectedNodes());
 }
 
 void KisNodeManager::mirrorNodeX()
 {
     KisNodeSP node = activeNode();
 
     KUndo2MagicString commandName;
     if (node->inherits("KisLayer")) {
         commandName = kundo2_i18n("Mirror Layer X");
     } else if (node->inherits("KisMask")) {
         commandName = kundo2_i18n("Mirror Mask X");
     }
     mirrorNode(node, commandName, Qt::Horizontal, m_d->view->selection());
 }
 
 void KisNodeManager::mirrorNodeY()
 {
     KisNodeSP node = activeNode();
 
     KUndo2MagicString commandName;
     if (node->inherits("KisLayer")) {
         commandName = kundo2_i18n("Mirror Layer Y");
     } else if (node->inherits("KisMask")) {
         commandName = kundo2_i18n("Mirror Mask Y");
     }
     mirrorNode(node, commandName, Qt::Vertical, m_d->view->selection());
 }
 
 void KisNodeManager::mirrorAllNodesX()
 {
     KisNodeSP node = m_d->view->image()->root();
     mirrorNode(node, kundo2_i18n("Mirror All Layers X"),
                Qt::Vertical, m_d->view->selection());
 }
 
 void KisNodeManager::mirrorAllNodesY()
 {
     KisNodeSP node = m_d->view->image()->root();
     mirrorNode(node, kundo2_i18n("Mirror All Layers Y"),
                Qt::Vertical, m_d->view->selection());
 }
 
 void KisNodeManager::activateNextNode()
 {
     KisNodeSP activeNode = this->activeNode();
     if (!activeNode) return;
 
     KisNodeSP node = activeNode->nextSibling();
 
     while (node && node->childCount() > 0) {
            node = node->firstChild();
     }
 
     if (!node && activeNode->parent() && activeNode->parent()->parent()) {
         node = activeNode->parent();
     }
 
     while(node && isNodeHidden(node, true)) {
         node = node->nextSibling();
     }
 
     if (node) {
         slotNonUiActivatedNode(node);
     }
 }
 
 void KisNodeManager::activatePreviousNode()
 {
     KisNodeSP activeNode = this->activeNode();
     if (!activeNode) return;
 
     KisNodeSP node;
 
     if (activeNode->childCount() > 0) {
         node = activeNode->lastChild();
     }
     else {
         node = activeNode->prevSibling();
     }
 
     while (!node && activeNode->parent()) {
         node = activeNode->parent()->prevSibling();
         activeNode = activeNode->parent();
     }
 
     while(node && isNodeHidden(node, true)) {
         node = node->prevSibling();
     }
 
     if (node) {
         slotNonUiActivatedNode(node);
     }
 }
 
 void KisNodeManager::switchToPreviouslyActiveNode()
 {
     if (m_d->previouslyActiveNode && m_d->previouslyActiveNode->parent()) {
         slotNonUiActivatedNode(m_d->previouslyActiveNode);
     }
 }
 
 void KisNodeManager::mirrorNode(KisNodeSP node,
                                 const KUndo2MagicString& actionName,
                                 Qt::Orientation orientation,
                                 KisSelectionSP selection)
 {
     KisImageSignalVector emitSignals;
     emitSignals << ModifiedSignal;
 
     KisProcessingApplicator applicator(m_d->view->image(), node,
                                        KisProcessingApplicator::RECURSIVE,
                                        emitSignals, actionName);
 
     KisProcessingVisitorSP visitor;
 
     if (selection) {
         visitor = new KisMirrorProcessingVisitor(selection, orientation);
     } else {
         visitor = new KisMirrorProcessingVisitor(m_d->view->image()->bounds(), orientation);
     }
 
     if (!selection) {
         applicator.applyVisitorAllFrames(visitor, KisStrokeJobData::CONCURRENT);
     } else {
         applicator.applyVisitor(visitor, KisStrokeJobData::CONCURRENT);
     }
 
     applicator.end();
 
     nodesUpdated();
 }
 
 void KisNodeManager::Private::saveDeviceAsImage(KisPaintDeviceSP device,
                                                 const QString &defaultName,
                                                 const QRect &bounds,
                                                 qreal xRes,
                                                 qreal yRes,
                                                 quint8 opacity)
 {
     KoFileDialog dialog(view->mainWindow(), KoFileDialog::SaveFile, "savenodeasimage");
     dialog.setCaption(i18n("Export \"%1\"", defaultName));
     dialog.setDefaultDir(QStandardPaths::writableLocation(QStandardPaths::PicturesLocation));
     dialog.setMimeTypeFilters(KisImportExportManager::supportedMimeTypes(KisImportExportManager::Export));
     QString filename = dialog.filename();
 
     if (filename.isEmpty()) return;
 
     QUrl url = QUrl::fromLocalFile(filename);
 
     if (url.isEmpty()) return;
 
     QString mimefilter = KisMimeDatabase::mimeTypeForFile(filename, false);
 
     QScopedPointer<KisDocument> doc(KisPart::instance()->createDocument());
 
     KisImageSP dst = new KisImage(doc->createUndoStore(),
                                   bounds.width(),
                                   bounds.height(),
                                   device->compositionSourceColorSpace(),
                                   defaultName);
     dst->setResolution(xRes, yRes);
     doc->setCurrentImage(dst);
     KisPaintLayer* paintLayer = new KisPaintLayer(dst, "paint device", opacity);
     paintLayer->paintDevice()->makeCloneFrom(device, bounds);
     dst->addNode(paintLayer, dst->rootLayer(), KisLayerSP(0));
 
     dst->initialRefreshGraph();
 
     if (!doc->exportDocumentSync(url, mimefilter.toLatin1())) {
         QMessageBox::warning(0,
                              i18nc("@title:window", "Krita"),
                              i18n("Could not save the layer. %1", doc->errorMessage().toUtf8().data()),
                              QMessageBox::Ok);
 
     }
 }
 
 void KisNodeManager::saveNodeAsImage()
 {
     KisNodeSP node = activeNode();
 
     if (!node) {
         warnKrita << "BUG: Save Node As Image was called without any node selected";
         return;
     }
 
     KisImageWSP image = m_d->view->image();
     QRect saveRect = image->bounds() | node->exactBounds();
 
     m_d->saveDeviceAsImage(node->projection(),
                            node->name(),
                            saveRect,
                            image->xRes(), image->yRes(),
                            node->opacity());
 }
 
 #include "SvgWriter.h"
 
 void KisNodeManager::saveVectorLayerAsImage()
 {
     KisShapeLayerSP shapeLayer = qobject_cast<KisShapeLayer*>(activeNode().data());
     if (!shapeLayer) {
         return;
     }
 
     KoFileDialog dialog(m_d->view->mainWindow(), KoFileDialog::SaveFile, "savenodeasimage");
     dialog.setCaption(i18nc("@title:window", "Export to SVG"));
     dialog.setDefaultDir(QStandardPaths::writableLocation(QStandardPaths::PicturesLocation));
     dialog.setMimeTypeFilters(QStringList() << "image/svg+xml", "image/svg+xml");
     QString filename = dialog.filename();
 
     if (filename.isEmpty()) return;
 
     QUrl url = QUrl::fromLocalFile(filename);
 
     if (url.isEmpty()) return;
 
     const QSizeF sizeInPx = m_d->view->image()->bounds().size();
     const QSizeF sizeInPt(sizeInPx.width() / m_d->view->image()->xRes(),
                           sizeInPx.height() / m_d->view->image()->yRes());
 
     QList<KoShape*> shapes = shapeLayer->shapes();
     std::sort(shapes.begin(), shapes.end(), KoShape::compareShapeZIndex);
 
     SvgWriter writer(shapes);
     if (!writer.save(filename, sizeInPt, true)) {
         QMessageBox::warning(qApp->activeWindow(), i18nc("@title:window", "Krita"), i18n("Could not save to svg: %1", filename));
     }
 }
 
 void KisNodeManager::slotSplitAlphaIntoMask()
 {
     KisNodeSP node = activeNode();
 
     // guaranteed by KisActionManager
     KIS_ASSERT_RECOVER_RETURN(node->hasEditablePaintDevice());
 
     KisPaintDeviceSP srcDevice = node->paintDevice();
     const KoColorSpace *srcCS = srcDevice->colorSpace();
     const QRect processRect =
         srcDevice->exactBounds() |
         srcDevice->defaultBounds()->bounds();
 
     KisPaintDeviceSP selectionDevice =
         new KisPaintDevice(KoColorSpaceRegistry::instance()->alpha8());
 
     m_d->commandsAdapter.beginMacro(kundo2_i18n("Split Alpha into a Mask"));
     KisTransaction transaction(kundo2_noi18n("__split_alpha_channel__"), srcDevice);
 
     KisSequentialIterator srcIt(srcDevice, processRect);
     KisSequentialIterator dstIt(selectionDevice, processRect);
 
     while (srcIt.nextPixel() && dstIt.nextPixel()) {
         quint8 *srcPtr = srcIt.rawData();
         quint8 *alpha8Ptr = dstIt.rawData();
 
         *alpha8Ptr = srcCS->opacityU8(srcPtr);
         srcCS->setOpacity(srcPtr, OPACITY_OPAQUE_U8, 1);
     }
 
     m_d->commandsAdapter.addExtraCommand(transaction.endAndTake());
 
     createNode("KisTransparencyMask", false, selectionDevice);
     m_d->commandsAdapter.endMacro();
 }
 
 void KisNodeManager::Private::mergeTransparencyMaskAsAlpha(bool writeToLayers)
 {
     KisNodeSP node = q->activeNode();
     KisNodeSP parentNode = node->parent();
 
     // guaranteed by KisActionManager
     KIS_ASSERT_RECOVER_RETURN(node->inherits("KisTransparencyMask"));
 
     if (writeToLayers && !parentNode->hasEditablePaintDevice()) {
         QMessageBox::information(view->mainWindow(),
                                  i18nc("@title:window", "Layer %1 is not editable", parentNode->name()),
                                  i18n("Cannot write alpha channel of "
                                       "the parent layer \"%1\".\n"
                                       "The operation will be cancelled.", parentNode->name()));
         return;
     }
 
     KisPaintDeviceSP dstDevice;
     if (writeToLayers) {
         KIS_ASSERT_RECOVER_RETURN(parentNode->paintDevice());
         dstDevice = parentNode->paintDevice();
     } else {
         KisPaintDeviceSP copyDevice = parentNode->paintDevice();
         if (!copyDevice) {
             copyDevice = parentNode->original();
         }
         dstDevice = new KisPaintDevice(*copyDevice);
     }
 
     const KoColorSpace *dstCS = dstDevice->colorSpace();
 
     KisPaintDeviceSP selectionDevice = node->paintDevice();
     KIS_ASSERT_RECOVER_RETURN(selectionDevice->colorSpace()->pixelSize() == 1);
 
     const QRect processRect =
         selectionDevice->exactBounds() |
         dstDevice->exactBounds() |
         selectionDevice->defaultBounds()->bounds();
 
     QScopedPointer<KisTransaction> transaction;
 
     if (writeToLayers) {
         commandsAdapter.beginMacro(kundo2_i18n("Write Alpha into a Layer"));
         transaction.reset(new KisTransaction(kundo2_noi18n("__write_alpha_channel__"), dstDevice));
     }
 
     KisSequentialIterator srcIt(selectionDevice, processRect);
     KisSequentialIterator dstIt(dstDevice, processRect);
 
     while (srcIt.nextPixel() && dstIt.nextPixel()) {
         quint8 *alpha8Ptr = srcIt.rawData();
         quint8 *dstPtr = dstIt.rawData();
 
         dstCS->setOpacity(dstPtr, *alpha8Ptr, 1);
     }
 
     if (writeToLayers) {
         commandsAdapter.addExtraCommand(transaction->endAndTake());
         commandsAdapter.removeNode(node);
         commandsAdapter.endMacro();
     } else {
         KisImageWSP image = view->image();
         QRect saveRect = image->bounds();
 
         saveDeviceAsImage(dstDevice, parentNode->name(),
                           saveRect,
                           image->xRes(), image->yRes(),
                           OPACITY_OPAQUE_U8);
     }
 }
 
 
 void KisNodeManager::slotSplitAlphaWrite()
 {
     m_d->mergeTransparencyMaskAsAlpha(true);
 }
 
 void KisNodeManager::slotSplitAlphaSaveMerged()
 {
     m_d->mergeTransparencyMaskAsAlpha(false);
 }
 
 void KisNodeManager::toggleLock()
 {
     KisNodeList nodes = this->selectedNodes();
     KisNodeSP active = activeNode();
     if (nodes.isEmpty() || !active) return;
 
     bool isLocked = active->userLocked();
 
     for (auto &node : nodes) {
         node->setUserLocked(!isLocked);
     }
 }
 
 void KisNodeManager::toggleVisibility()
 {
     KisNodeList nodes = this->selectedNodes();
     KisNodeSP active = activeNode();
     if (nodes.isEmpty() || !active) return;
 
     bool isVisible = active->visible();
 
     for (auto &node : nodes) {
         node->setVisible(!isVisible);
         node->setDirty();
     }
 }
 
 void KisNodeManager::toggleAlphaLock()
 {
     KisNodeList nodes = this->selectedNodes();
     KisNodeSP active = activeNode();
     if (nodes.isEmpty() || !active) return;
 
     auto layer = qobject_cast<KisPaintLayer*>(active.data());
     if (!layer) {
         return;
     }
 
     bool isAlphaLocked = layer->alphaLocked();
     for (auto &node : nodes) {
         auto layer = qobject_cast<KisPaintLayer*>(node.data());
         if (layer) {
             layer->setAlphaLocked(!isAlphaLocked);
         }
     }
 }
 
 void KisNodeManager::toggleInheritAlpha()
 {
     KisNodeList nodes = this->selectedNodes();
     KisNodeSP active = activeNode();
     if (nodes.isEmpty() || !active) return;
 
     auto layer = qobject_cast<KisLayer*>(active.data());
     if (!layer) {
         return;
     }
 
     bool isAlphaDisabled = layer->alphaChannelDisabled();
     for (auto &node : nodes) {
         auto layer = qobject_cast<KisLayer*>(node.data());
         if (layer) {
             layer->disableAlphaChannel(!isAlphaDisabled);
             node->setDirty();
         }
     }
 }
 
 void KisNodeManager::cutLayersToClipboard()
 {
     KisNodeList nodes = this->selectedNodes();
     if (nodes.isEmpty()) return;
 
     KisClipboard::instance()->setLayers(nodes, m_d->view->image(), false);
 
     KUndo2MagicString actionName = kundo2_i18n("Cut Nodes");
     KisNodeJugglerCompressed *juggler = m_d->lazyGetJuggler(actionName);
     juggler->removeNode(nodes);
 }
 
 void KisNodeManager::copyLayersToClipboard()
 {
     KisNodeList nodes = this->selectedNodes();
     KisClipboard::instance()->setLayers(nodes, m_d->view->image(), true);
 }
 
 void KisNodeManager::pasteLayersFromClipboard()
 {
     const QMimeData *data = KisClipboard::instance()->layersMimeData();
     if (!data) return;
 
     KisNodeSP activeNode = this->activeNode();
 
     KisShapeController *shapeController = dynamic_cast<KisShapeController*>(m_d->imageView->document()->shapeController());
     Q_ASSERT(shapeController);
 
     KisDummiesFacadeBase *dummiesFacade = dynamic_cast<KisDummiesFacadeBase*>(m_d->imageView->document()->shapeController());
     Q_ASSERT(dummiesFacade);
 
     const bool copyNode = false;
     KisImageSP image = m_d->view->image();
     KisNodeDummy *parentDummy = dummiesFacade->dummyForNode(activeNode);
     KisNodeDummy *aboveThisDummy = parentDummy ? parentDummy->lastChild() : 0;
 
     KisMimeData::insertMimeLayers(data,
                                   image,
                                   shapeController,
                                   parentDummy,
                                   aboveThisDummy,
                                   copyNode,
                                   nodeInsertionAdapter());
 }
 
 void KisNodeManager::createQuickGroupImpl(KisNodeJugglerCompressed *juggler,
                                           const QString &overrideGroupName,
                                           KisNodeSP *newGroup,
                                           KisNodeSP *newLastChild)
 {
     KisNodeSP active = activeNode();
     if (!active) return;
 
     KisImageSP image = m_d->view->image();
     QString groupName = !overrideGroupName.isEmpty() ? overrideGroupName : image->nextLayerName();
     KisGroupLayerSP group = new KisGroupLayer(image.data(), groupName, OPACITY_OPAQUE_U8);
 
     KisNodeList nodes1;
     nodes1 << group;
 
     KisNodeList nodes2;
     nodes2 = KisLayerUtils::sortMergableNodes(image->root(), selectedNodes());
     KisLayerUtils::filterMergableNodes(nodes2);
 
     if (nodes2.size() == 0) return;
 
     if (KisLayerUtils::checkIsChildOf(active, nodes2)) {
         active = nodes2.first();
     }
 
     KisNodeSP parent = active->parent();
     KisNodeSP aboveThis = active;
 
     juggler->addNode(nodes1, parent, aboveThis);
     juggler->moveNode(nodes2, group, 0);
 
     *newGroup = group;
     *newLastChild = nodes2.last();
 }
 
 void KisNodeManager::createQuickGroup()
 {
     KUndo2MagicString actionName = kundo2_i18n("Quick Group");
     KisNodeJugglerCompressed *juggler = m_d->lazyGetJuggler(actionName);
 
     KisNodeSP parent;
     KisNodeSP above;
 
     createQuickGroupImpl(juggler, "", &parent, &above);
 }
 
 void KisNodeManager::createQuickClippingGroup()
 {
     KUndo2MagicString actionName = kundo2_i18n("Quick Clipping Group");
     KisNodeJugglerCompressed *juggler = m_d->lazyGetJuggler(actionName);
 
     KisNodeSP parent;
     KisNodeSP above;
 
     KisImageSP image = m_d->view->image();
     createQuickGroupImpl(juggler, image->nextLayerName(i18nc("default name for a clipping group layer", "Clipping Group")), &parent, &above);
 
     KisPaintLayerSP maskLayer = new KisPaintLayer(image.data(), i18nc("default name for quick clip group mask layer", "Mask Layer"), OPACITY_OPAQUE_U8, image->colorSpace());
     maskLayer->disableAlphaChannel(true);
 
     juggler->addNode(KisNodeList() << maskLayer, parent, above);
 }
 
 void KisNodeManager::quickUngroup()
 {
     KisNodeSP active = activeNode();
     if (!active) return;
 
     KisNodeSP parent = active->parent();
     KisNodeSP aboveThis = active;
 
     KUndo2MagicString actionName = kundo2_i18n("Quick Ungroup");
 
     if (parent && dynamic_cast<KisGroupLayer*>(active.data())) {
         KisNodeList nodes = active->childNodes(QStringList(), KoProperties());
 
         KisNodeJugglerCompressed *juggler = m_d->lazyGetJuggler(actionName);
         juggler->moveNode(nodes, parent, active);
         juggler->removeNode(KisNodeList() << active);
     } else if (parent && parent->parent()) {
         KisNodeSP grandParent = parent->parent();
 
         KisNodeList allChildNodes = parent->childNodes(QStringList(), KoProperties());
         KisNodeList allSelectedNodes = selectedNodes();
 
         const bool removeParent = KritaUtils::compareListsUnordered(allChildNodes, allSelectedNodes);
 
         KisNodeJugglerCompressed *juggler = m_d->lazyGetJuggler(actionName);
         juggler->moveNode(allSelectedNodes, grandParent, parent);
         if (removeParent) {
             juggler->removeNode(KisNodeList() << parent);
         }
     }
 }
 
 void KisNodeManager::selectLayersImpl(const KoProperties &props, const KoProperties &invertedProps)
 {
     KisImageSP image = m_d->view->image();
     KisNodeList nodes = KisLayerUtils::findNodesWithProps(image->root(), props, true);
 
     KisNodeList selectedNodes = this->selectedNodes();
 
     if (KritaUtils::compareListsUnordered(nodes, selectedNodes)) {
         nodes = KisLayerUtils::findNodesWithProps(image->root(), invertedProps, true);
     }
 
     if (!nodes.isEmpty()) {
         slotImageRequestNodeReselection(nodes.last(), nodes);
     }
 }
 
 void KisNodeManager::selectAllNodes()
 {
     KoProperties props;
     selectLayersImpl(props, props);
 }
 
 void KisNodeManager::selectVisibleNodes()
 {
     KoProperties props;
     props.setProperty("visible", true);
 
     KoProperties invertedProps;
     invertedProps.setProperty("visible", false);
 
     selectLayersImpl(props, invertedProps);
 }
 
 void KisNodeManager::selectLockedNodes()
 {
     KoProperties props;
     props.setProperty("locked", true);
 
     KoProperties invertedProps;
     invertedProps.setProperty("locked", false);
 
     selectLayersImpl(props, invertedProps);
 }
 
 void KisNodeManager::selectInvisibleNodes()
 {
     KoProperties props;
     props.setProperty("visible", false);
 
     KoProperties invertedProps;
     invertedProps.setProperty("visible", true);
 
     selectLayersImpl(props, invertedProps);
 }
 
 void KisNodeManager::selectUnlockedNodes()
 {
     KoProperties props;
     props.setProperty("locked", false);
 
     KoProperties invertedProps;
     invertedProps.setProperty("locked", true);
 
     selectLayersImpl(props, invertedProps);
 }
diff --git a/libs/ui/kis_node_manager.h b/libs/ui/kis_node_manager.h
index 17fc37dab0..c5d9365992 100644
--- a/libs/ui/kis_node_manager.h
+++ b/libs/ui/kis_node_manager.h
@@ -1,264 +1,266 @@
 /*
  *  Copyright (C) 2007 Boudewijn Rempt <boud@valdyas.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 #ifndef KIS_NODE_MANAGER
 #define KIS_NODE_MANAGER
 
 #include <QObject>
 #include <QList>
 
 #include "kis_types.h"
 #include "kis_base_node.h"
 #include <kritaui_export.h>
 
 class KActionCollection;
 
 class KoCompositeOp;
 class KoColorSpace;
 class KUndo2MagicString;
 
 class KisFilterStrategy;
 class KisViewManager;
 class KisActionManager;
 class KisView;
 class KisNodeSelectionAdapter;
 class KisNodeInsertionAdapter;
 class KisNodeDisplayModeAdapter;
 class KisNodeJugglerCompressed;
 class KoProperties;
 
 /**
  * The node manager passes requests for new layers or masks on to the mask and layer
  * managers.
  */
 class KRITAUI_EXPORT KisNodeManager : public QObject
 {
 
     Q_OBJECT
 
 public:
 
     KisNodeManager(KisViewManager * view);
     ~KisNodeManager() override;
 
     void setView(QPointer<KisView>imageView);
 
 Q_SIGNALS:
 
     /// emitted whenever a node is selected.
     void sigNodeActivated(KisNodeSP node);
 
     /// emitted whenever a different layer is selected.
     void sigLayerActivated(KisLayerSP layer);
 
     /// for the layer box: this sets the current node in the layerbox
     /// without telling the node manager that the node is activated,
     /// preventing loops (I think...)
     void sigUiNeedChangeActiveNode(KisNodeSP node);
 
     void sigUiNeedChangeSelectedNodes(const KisNodeList &nodes);
 
 public:
 
     void setup(KActionCollection * collection, KisActionManager* actionManager);
     void updateGUI();
 
     /// Convenience function to get the active layer or mask
     KisNodeSP activeNode();
 
     /// convenience function to get the active layer. If a mask is
     /// active, it's parent layer is the active layer.
     KisLayerSP activeLayer();
 
     /// Get the paint device the user wants to paint on now
     KisPaintDeviceSP activePaintDevice();
 
     /**
      * @return the active color space used for composition, meaning the color space
      * of the active mask, or the color space of the parent of the active layer
      */
     const KoColorSpace* activeColorSpace();
 
     /**
      * Sets opacity for the node in a universal way (masks/layers)
      */
     void setNodeOpacity(KisNodeSP node, qint32 opacity);
 
     /**
      * Sets compositeOp for the node in a universal way (masks/layers)
      */
     void setNodeCompositeOp(KisNodeSP node, const KoCompositeOp* compositeOp);
 
     KisNodeList selectedNodes();
 
     KisNodeSelectionAdapter* nodeSelectionAdapter() const;
     KisNodeInsertionAdapter* nodeInsertionAdapter() const;
     KisNodeDisplayModeAdapter* nodeDisplayModeAdapter() const;
 
     static bool isNodeHidden(KisNodeSP node, bool isGlobalSelectionHidden);
 
     bool trySetNodeProperties(KisNodeSP node, KisImageSP image, KisBaseNode::PropertyList properties) const;
 
 public Q_SLOTS:
 
     /**
      * Explicitly activates \p node
      * The UI will be noticed that active node has been changed.
      * Both sigNodeActivated and sigUiNeedChangeActiveNode are emitted.
      *
      * WARNING: normally you needn't call this method manually. It is
      * automatically called when a node is added to the graph. If you
      * have some special cases when you need to activate a node, consider
      * adding them to KisDummiesFacadeBase instead. Calling this method
      * directly  should be the last resort.
      *
      * \see slotUiActivatedNode for comparison
      */
     void slotNonUiActivatedNode(KisNodeSP node);
 
     /**
      * Activates \p node.
      * All non-ui listeners are notified with sigNodeActivated,
      * sigUiNeedChangeActiveNode is *not* emitted.
      *
      * \see activateNode
      */
     void slotUiActivatedNode(KisNodeSP node);
 
     /**
      * Adds a list of nodes without searching appropriate position for
      * it.  You *must* ensure that the nodes are allowed to be added
      * to the parent, otherwise you'll get an assert.
      */
     void addNodesDirect(KisNodeList nodes, KisNodeSP parent, KisNodeSP aboveThis);
 
     /**
      * Moves a list of nodes without searching appropriate position
      * for it.  You *must* ensure that the nodes are allowed to be
      * added to the parent, otherwise you'll get an assert.
      */
     void moveNodesDirect(KisNodeList nodes, KisNodeSP parent, KisNodeSP aboveThis);
 
     /**
      * Copies a list of nodes without searching appropriate position
      * for it.  You *must* ensure that the nodes are allowed to be
      * added to the parent, otherwise you'll get an assert.
      */
     void copyNodesDirect(KisNodeList nodes, KisNodeSP parent, KisNodeSP aboveThis);
 
     /**
      * Create new layer from actually visible
      */
     void createFromVisible();
 
     void slotShowHideTimeline(bool value);
 
     void toggleIsolateActiveNode();
     void toggleIsolateMode(bool checked);
     void slotUpdateIsolateModeActionImageStatusChange();
     void slotUpdateIsolateModeAction();
     void slotTryRestartIsolatedMode();
 
     void moveNodeAt(KisNodeSP node, KisNodeSP parent, int index);
     KisNodeSP createNode(const QString& nodeType, bool quiet = false, KisPaintDeviceSP copyFrom = 0);
     void convertNode(const QString &nodeType);
     void nodesUpdated();
     void nodeProperties(KisNodeSP node);
+    /// pop up a window for changing the source of the selected Clone Layers
+    void changeCloneSource();
     void nodeOpacityChanged(qreal opacity);
     void nodeCompositeOpChanged(const KoCompositeOp* op);
     void duplicateActiveNode();
     void removeNode();
     void mirrorNodeX();
     void mirrorNodeY();
     void mirrorAllNodesX();
     void mirrorAllNodesY();
 
 
     void mirrorNode(KisNodeSP node, const KUndo2MagicString& commandName, Qt::Orientation orientation, KisSelectionSP selection);
 
 
     void activateNextNode();
     void activatePreviousNode();
     void switchToPreviouslyActiveNode();
 
     /**
      * move the active node up the nodestack.
      */
     void raiseNode();
 
     /**
      * move the active node down the nodestack
      */
     void lowerNode();
 
     void saveNodeAsImage();
     void saveVectorLayerAsImage();
 
     void slotSplitAlphaIntoMask();
     void slotSplitAlphaWrite();
     void slotSplitAlphaSaveMerged();
 
     void toggleLock();
     void toggleVisibility();
     void toggleAlphaLock();
     void toggleInheritAlpha();
 
     /**
      * @brief slotSetSelectedNodes set the list of nodes selected in the layerbox. Selected nodes are not necessarily active nodes.
      * @param nodes the selected nodes
      */
     void slotSetSelectedNodes(const KisNodeList &nodes);
 
     void slotImageRequestNodeReselection(KisNodeSP activeNode, const KisNodeList &selectedNodes);
 
     void cutLayersToClipboard();
     void copyLayersToClipboard();
     void pasteLayersFromClipboard();
 
     void createQuickGroup();
     void createQuickClippingGroup();
     void quickUngroup();
 
     void selectAllNodes();
     void selectVisibleNodes();
     void selectLockedNodes();
     void selectInvisibleNodes();
     void selectUnlockedNodes();
 
 public:
     void removeSingleNode(KisNodeSP node);
     KisLayerSP createPaintLayer();
 
 private:
     /**
      * Scales opacity from the range 0...1
      * to the integer range 0...255
      */
     qint32 convertOpacityToInt(qreal opacity);
     void removeSelectedNodes(KisNodeList selectedNodes);
     void slotSomethingActivatedNodeImpl(KisNodeSP node);
     void createQuickGroupImpl(KisNodeJugglerCompressed *juggler,
                               const QString &overrideGroupName,
                               KisNodeSP *newGroup,
                               KisNodeSP *newLastChild);
     void selectLayersImpl(const KoProperties &props, const KoProperties &invertedProps);
 
     struct Private;
     Private * const m_d;
 };
 
 #endif
diff --git a/plugins/dockers/layerdocker/LayerBox.cpp b/plugins/dockers/layerdocker/LayerBox.cpp
index f425e3c3dc..f5e0566af7 100644
--- a/plugins/dockers/layerdocker/LayerBox.cpp
+++ b/plugins/dockers/layerdocker/LayerBox.cpp
@@ -1,1081 +1,1100 @@
 /*
  *  LayerBox.cc - part of Krita aka Krayon aka KimageShop
  *
  *  Copyright (c) 2002 Patrick Julien <freak@codepimps.org>
  *  Copyright (C) 2006 Gábor Lehel <illissius@gmail.com>
  *  Copyright (C) 2007 Thomas Zander <zander@kde.org>
  *  Copyright (C) 2007 Boudewijn Rempt <boud@valdyas.org>
  *  Copyright (c) 2011 José Luis Vergara <pentalis@gmail.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
 #include "LayerBox.h"
 
 #include <QToolButton>
 #include <QLayout>
 #include <QMouseEvent>
 #include <QPainter>
 #include <QPoint>
 #include <QRect>
 #include <QString>
 #include <QToolTip>
 #include <QWidget>
 #include <QComboBox>
 #include <QCheckBox>
 #include <QVBoxLayout>
 #include <QPixmap>
 #include <QList>
 #include <QVector>
 #include <QLabel>
 #include <QMenu>
 #include <QWidgetAction>
 #include <QProxyStyle>
 
 #include <kis_debug.h>
 #include <klocalizedstring.h>
 
 #include <kis_icon.h>
 #include <KoColorSpace.h>
 #include <KoCompositeOpRegistry.h>
 #include <KisDocument.h>
 
 #include <kis_types.h>
 #include <kis_image.h>
 #include <kis_paint_device.h>
 #include <kis_layer.h>
 #include <kis_group_layer.h>
 #include <kis_mask.h>
 #include <kis_node.h>
 #include <kis_base_node.h>
 #include <kis_composite_ops_model.h>
 #include <kis_keyframe_channel.h>
 #include <kis_image_animation_interface.h>
 #include <KoProperties.h>
 
 #include <kis_action.h>
 #include "kis_action_manager.h"
 #include "widgets/kis_cmb_composite.h"
 #include "widgets/kis_slider_spin_box.h"
 #include "KisViewManager.h"
 #include "kis_node_manager.h"
 #include "kis_node_model.h"
 
 #include "canvas/kis_canvas2.h"
 #include "kis_dummies_facade_base.h"
 #include "kis_shape_controller.h"
 #include "kis_selection_mask.h"
 #include "kis_config.h"
 #include "KisView.h"
 #include "krita_utils.h"
 #include "kis_color_label_selector_widget.h"
 #include "kis_signals_blocker.h"
 #include "kis_color_filter_combo.h"
 #include "kis_node_filter_proxy_model.h"
 
 #include "kis_selection.h"
 #include "kis_processing_applicator.h"
 #include "commands/kis_set_global_selection_command.h"
 #include "KisSelectionActionsAdapter.h"
 
 #include "kis_layer_utils.h"
 
 #include "ui_WdgLayerBox.h"
 #include "NodeView.h"
 #include "SyncButtonAndAction.h"
 
 
 class LayerBoxStyle : public QProxyStyle
 {
 public:
     LayerBoxStyle(QStyle *baseStyle = 0) : QProxyStyle(baseStyle) {}
 
     void drawPrimitive(PrimitiveElement element, const QStyleOption *option,
                        QPainter *painter, const QWidget *widget) const
     {
         if (element == QStyle::PE_IndicatorItemViewItemDrop)
         {
             QColor color(widget->palette().color(QPalette::Highlight).lighter());
 
             if (option->rect.height() == 0) {
                 QBrush brush(color);
 
                 QRect r(option->rect);
                 r.setTop(r.top() - 2);
                 r.setBottom(r.bottom() + 2);
 
                 painter->fillRect(r, brush);
             } else {
                 color.setAlpha(200);
                 QBrush brush(color);
                 painter->fillRect(option->rect, brush);
             }
         }
         else
         {
             QProxyStyle::drawPrimitive(element, option, painter, widget);
         }
     }
 };
 
 inline void LayerBox::connectActionToButton(KisViewManager* viewManager, QAbstractButton *button, const QString &id)
 {
     if (!viewManager || !button) return;
 
     KisAction *action = viewManager->actionManager()->actionByName(id);
 
     if (!action) return;
 
     connect(button, SIGNAL(clicked()), action, SLOT(trigger()));
     connect(action, SIGNAL(sigEnableSlaves(bool)), button, SLOT(setEnabled(bool)));
     connect(viewManager->mainWindow(), SIGNAL(themeChanged()), this, SLOT(slotUpdateIcons()));
 }
 
 inline void LayerBox::addActionToMenu(QMenu *menu, const QString &id)
 {
     if (m_canvas) {
         menu->addAction(m_canvas->viewManager()->actionManager()->actionByName(id));
     }
 }
 
 LayerBox::LayerBox()
     : QDockWidget(i18n("Layers"))
     , m_canvas(0)
     , m_wdgLayerBox(new Ui_WdgLayerBox)
     , m_thumbnailCompressor(500, KisSignalCompressor::FIRST_INACTIVE)
     , m_colorLabelCompressor(900, KisSignalCompressor::FIRST_INACTIVE)
     , m_thumbnailSizeCompressor(100, KisSignalCompressor::FIRST_INACTIVE)
 {
     KisConfig cfg(false);
 
     QWidget* mainWidget = new QWidget(this);
     setWidget(mainWidget);
     m_opacityDelayTimer.setSingleShot(true);
 
     m_wdgLayerBox->setupUi(mainWidget);
 
     m_wdgLayerBox->listLayers->setStyle(new LayerBoxStyle(m_wdgLayerBox->listLayers->style()));
 
     connect(m_wdgLayerBox->listLayers,
             SIGNAL(contextMenuRequested(QPoint,QModelIndex)),
             this, SLOT(slotContextMenuRequested(QPoint,QModelIndex)));
     connect(m_wdgLayerBox->listLayers,
             SIGNAL(collapsed(QModelIndex)), SLOT(slotCollapsed(QModelIndex)));
     connect(m_wdgLayerBox->listLayers,
             SIGNAL(expanded(QModelIndex)), SLOT(slotExpanded(QModelIndex)));
     connect(m_wdgLayerBox->listLayers,
             SIGNAL(selectionChanged(QModelIndexList)), SLOT(selectionChanged(QModelIndexList)));
 
     slotUpdateIcons();
 
     m_wdgLayerBox->bnDelete->setIconSize(QSize(22, 22));
     m_wdgLayerBox->bnRaise->setIconSize(QSize(22, 22));
     m_wdgLayerBox->bnLower->setIconSize(QSize(22, 22));
     m_wdgLayerBox->bnProperties->setIconSize(QSize(22, 22));
     m_wdgLayerBox->bnDuplicate->setIconSize(QSize(22, 22));
 
     m_wdgLayerBox->bnLower->setEnabled(false);
     m_wdgLayerBox->bnRaise->setEnabled(false);
 
     if (cfg.sliderLabels()) {
         m_wdgLayerBox->opacityLabel->hide();
         m_wdgLayerBox->doubleOpacity->setPrefix(QString("%1:  ").arg(i18n("Opacity")));
     }
     m_wdgLayerBox->doubleOpacity->setRange(0, 100, 0);
     m_wdgLayerBox->doubleOpacity->setSuffix("%");
 
     connect(m_wdgLayerBox->doubleOpacity, SIGNAL(valueChanged(qreal)), SLOT(slotOpacitySliderMoved(qreal)));
     connect(&m_opacityDelayTimer, SIGNAL(timeout()), SLOT(slotOpacityChanged()));
 
     connect(m_wdgLayerBox->cmbComposite, SIGNAL(activated(int)), SLOT(slotCompositeOpChanged(int)));
 
     m_newLayerMenu = new QMenu(this);
     m_wdgLayerBox->bnAdd->setMenu(m_newLayerMenu);
     m_wdgLayerBox->bnAdd->setPopupMode(QToolButton::MenuButtonPopup);
 
     m_nodeModel = new KisNodeModel(this);
     m_filteringModel = new KisNodeFilterProxyModel(this);
     m_filteringModel->setNodeModel(m_nodeModel);
 
     /**
      * Connect model updateUI() to enable/disable controls.
      * Note: nodeActivated() is connected separately in setImage(), because
      *       it needs particular order of calls: first the connection to the
      *       node manager should be called, then updateUI()
      */
     connect(m_nodeModel, SIGNAL(rowsInserted(QModelIndex,int,int)), SLOT(updateUI()));
     connect(m_nodeModel, SIGNAL(rowsRemoved(QModelIndex,int,int)), SLOT(updateUI()));
     connect(m_nodeModel, SIGNAL(rowsMoved(QModelIndex,int,int,QModelIndex,int)), SLOT(updateUI()));
     connect(m_nodeModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)), SLOT(updateUI()));
     connect(m_nodeModel, SIGNAL(modelReset()), SLOT(slotModelReset()));
 
     KisAction *showGlobalSelectionMask = new KisAction(i18n("&Show Global Selection Mask"), this);
     showGlobalSelectionMask->setObjectName("show-global-selection-mask");
     showGlobalSelectionMask->setActivationFlags(KisAction::ACTIVE_IMAGE);
     showGlobalSelectionMask->setToolTip(i18nc("@info:tooltip", "Shows global selection as a usual selection mask in <b>Layers</b> docker"));
     showGlobalSelectionMask->setCheckable(true);
     connect(showGlobalSelectionMask, SIGNAL(triggered(bool)), SLOT(slotEditGlobalSelection(bool)));
     m_actions.append(showGlobalSelectionMask);
 
     showGlobalSelectionMask->setChecked(cfg.showGlobalSelection());
 
     m_colorSelector = new KisColorLabelSelectorWidget(this);
     connect(m_colorSelector, SIGNAL(currentIndexChanged(int)), SLOT(slotColorLabelChanged(int)));
     m_colorSelectorAction = new QWidgetAction(this);
     m_colorSelectorAction->setDefaultWidget(m_colorSelector);
 
     connect(m_nodeModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
             &m_colorLabelCompressor, SLOT(start()));
 
     m_wdgLayerBox->listLayers->setModel(m_filteringModel);
     // this connection should be done *after* the setModel() call to
     // happen later than the internal selection model
     connect(m_filteringModel.data(), &KisNodeFilterProxyModel::rowsAboutToBeRemoved,
             this, &LayerBox::slotAboutToRemoveRows);
 
     connect(m_wdgLayerBox->cmbFilter, SIGNAL(selectedColorsChanged()), SLOT(updateLayerFiltering()));
 
     setEnabled(false);
 
     connect(&m_thumbnailCompressor, SIGNAL(timeout()), SLOT(updateThumbnail()));
     connect(&m_colorLabelCompressor, SIGNAL(timeout()), SLOT(updateAvailableLabels()));
 
 
 
     // set up the configure menu for changing thumbnail size
     QMenu* configureMenu = new QMenu(this);
     configureMenu->setStyleSheet("margin: 6px");
     configureMenu->addSection(i18n("Thumbnail Size"));
 
     m_wdgLayerBox->configureLayerDockerToolbar->setMenu(configureMenu);
     m_wdgLayerBox->configureLayerDockerToolbar->setIcon(KisIconUtils::loadIcon("configure"));
 
     m_wdgLayerBox->configureLayerDockerToolbar->setPopupMode(QToolButton::InstantPopup);
 
 
     // add horizontal slider
     thumbnailSizeSlider = new QSlider(this);
     thumbnailSizeSlider->setOrientation(Qt::Horizontal);
     thumbnailSizeSlider->setRange(20, 80);
 
     thumbnailSizeSlider->setValue(cfg.layerThumbnailSize(false)); // grab this from the kritarc
 
     thumbnailSizeSlider->setMinimumHeight(20);
     thumbnailSizeSlider->setMinimumWidth(40);
     thumbnailSizeSlider->setTickInterval(5);
 
 
     QWidgetAction *sliderAction= new QWidgetAction(this);
     sliderAction->setDefaultWidget(thumbnailSizeSlider);
     configureMenu->addAction(sliderAction);
 
 
     connect(thumbnailSizeSlider, SIGNAL(sliderMoved(int)), &m_thumbnailSizeCompressor, SLOT(start()));
     connect(&m_thumbnailSizeCompressor, SIGNAL(timeout()), SLOT(slotUpdateThumbnailIconSize()));
+
+
+    m_changeCloneSourceAction = new KisAction(i18n("Set Copy F&rom..."), this);
+    m_changeCloneSourceAction->setObjectName("set-copy-from");
+    m_changeCloneSourceAction->setToolTip(i18nc("@info:tooltip", "Set the source for the selected clone layer(s)."));
+    m_actions.append(m_changeCloneSourceAction);
+
+    connect(m_changeCloneSourceAction, &KisAction::triggered,
+            this, &LayerBox::slotChangeCloneSourceClicked);
 }
 
 LayerBox::~LayerBox()
 {
     delete m_wdgLayerBox;
 }
 
 
 void expandNodesRecursively(KisNodeSP root, QPointer<KisNodeFilterProxyModel> filteringModel, NodeView *nodeView)
 {
     if (!root) return;
     if (filteringModel.isNull()) return;
     if (!nodeView) return;
 
     nodeView->blockSignals(true);
 
     KisNodeSP node = root->firstChild();
     while (node) {
         QModelIndex idx = filteringModel->indexFromNode(node);
         if (idx.isValid()) {
             nodeView->setExpanded(idx, !node->collapsed());
         }
         if (!node->collapsed() && node->childCount() > 0) {
             expandNodesRecursively(node, filteringModel, nodeView);
         }
         node = node->nextSibling();
     }
     nodeView->blockSignals(false);
 }
 
 void LayerBox::slotAddLayerBnClicked()
 {
     if (m_canvas) {
         KisNodeList nodes = m_nodeManager->selectedNodes();
 
         if (nodes.size() == 1) {
             KisAction *action = m_canvas->viewManager()->actionManager()->actionByName("add_new_paint_layer");
             action->trigger();
         } else {
             KisAction *action = m_canvas->viewManager()->actionManager()->actionByName("create_quick_group");
             action->trigger();
         }
     }
 }
 
 void LayerBox::setViewManager(KisViewManager* kisview)
 {
     m_nodeManager = kisview->nodeManager();
 
     Q_FOREACH (KisAction *action, m_actions) {
         kisview->actionManager()->
                 addAction(action->objectName(),
                           action);
     }
 
     connect(m_wdgLayerBox->bnAdd, SIGNAL(clicked()), this, SLOT(slotAddLayerBnClicked()));
     connectActionToButton(kisview, m_wdgLayerBox->bnDuplicate, "duplicatelayer");
 
     KisActionManager *actionManager = kisview->actionManager();
 
     KisAction *action = actionManager->createAction("RenameCurrentLayer");
     Q_ASSERT(action);
     connect(action, SIGNAL(triggered()), this, SLOT(slotRenameCurrentNode()));
 
     m_propertiesAction = actionManager->createAction("layer_properties");
     Q_ASSERT(m_propertiesAction);
     new SyncButtonAndAction(m_propertiesAction, m_wdgLayerBox->bnProperties, this);
     connect(m_propertiesAction, SIGNAL(triggered()), this, SLOT(slotPropertiesClicked()));
 
     m_removeAction = actionManager->createAction("remove_layer");
     Q_ASSERT(m_removeAction);
     new SyncButtonAndAction(m_removeAction, m_wdgLayerBox->bnDelete, this);
     connect(m_removeAction, SIGNAL(triggered()), this, SLOT(slotRmClicked()));
 
     action = actionManager->createAction("move_layer_up");
     Q_ASSERT(action);
     new SyncButtonAndAction(action, m_wdgLayerBox->bnRaise, this);
     connect(action, SIGNAL(triggered()), this, SLOT(slotRaiseClicked()));
 
     action = actionManager->createAction("move_layer_down");
     Q_ASSERT(action);
     new SyncButtonAndAction(action, m_wdgLayerBox->bnLower, this);
     connect(action, SIGNAL(triggered()), this, SLOT(slotLowerClicked()));
 }
 
 void LayerBox::setCanvas(KoCanvasBase *canvas)
 {
     if (m_canvas == canvas)
         return;
 
     setEnabled(canvas != 0);
 
     if (m_canvas) {
         m_canvas->disconnectCanvasObserver(this);
         m_nodeModel->setDummiesFacade(0, 0, 0, 0, 0);
         m_selectionActionsAdapter.reset();
 
         if (m_image) {
             KisImageAnimationInterface *animation = m_image->animationInterface();
             animation->disconnect(this);
         }
 
         disconnect(m_image, 0, this, 0);
         disconnect(m_nodeManager, 0, this, 0);
         disconnect(m_nodeModel, 0, m_nodeManager, 0);
         m_nodeManager->slotSetSelectedNodes(KisNodeList());
     }
 
     m_canvas = dynamic_cast<KisCanvas2*>(canvas);
 
     if (m_canvas) {
         m_image = m_canvas->image();
         connect(m_image, SIGNAL(sigImageUpdated(QRect)), &m_thumbnailCompressor, SLOT(start()));
 
         KisDocument* doc = static_cast<KisDocument*>(m_canvas->imageView()->document());
         KisShapeController *kritaShapeController =
                 dynamic_cast<KisShapeController*>(doc->shapeController());
         KisDummiesFacadeBase *kritaDummiesFacade =
                 static_cast<KisDummiesFacadeBase*>(kritaShapeController);
 
 
         m_selectionActionsAdapter.reset(new KisSelectionActionsAdapter(m_canvas->viewManager()->selectionManager()));
         m_nodeModel->setDummiesFacade(kritaDummiesFacade,
                                       m_image,
                                       kritaShapeController,
                                       m_selectionActionsAdapter.data(),
                                       m_nodeManager);
 
         connect(m_image, SIGNAL(sigAboutToBeDeleted()), SLOT(notifyImageDeleted()));
         connect(m_image, SIGNAL(sigNodeCollapsedChanged()), SLOT(slotNodeCollapsedChanged()));
 
         // cold start
         if (m_nodeManager) {
             setCurrentNode(m_nodeManager->activeNode());
             // Connection KisNodeManager -> LayerBox
             connect(m_nodeManager, SIGNAL(sigUiNeedChangeActiveNode(KisNodeSP)),
                     this, SLOT(setCurrentNode(KisNodeSP)));
 
             connect(m_nodeManager,
                     SIGNAL(sigUiNeedChangeSelectedNodes(QList<KisNodeSP>)),
                     SLOT(slotNodeManagerChangedSelection(QList<KisNodeSP>)));
         }
         else {
             setCurrentNode(m_canvas->imageView()->currentNode());
         }
 
         // Connection LayerBox -> KisNodeManager (isolate layer)
         connect(m_nodeModel, SIGNAL(toggleIsolateActiveNode()),
                 m_nodeManager, SLOT(toggleIsolateActiveNode()));
 
         KisImageAnimationInterface *animation = m_image->animationInterface();
         connect(animation, &KisImageAnimationInterface::sigUiTimeChanged, this, &LayerBox::slotImageTimeChanged);
 
         expandNodesRecursively(m_image->rootLayer(), m_filteringModel, m_wdgLayerBox->listLayers);
         m_wdgLayerBox->listLayers->scrollTo(m_wdgLayerBox->listLayers->currentIndex());
         updateAvailableLabels();
 
         addActionToMenu(m_newLayerMenu, "add_new_paint_layer");
         addActionToMenu(m_newLayerMenu, "add_new_group_layer");
         addActionToMenu(m_newLayerMenu, "add_new_clone_layer");
         addActionToMenu(m_newLayerMenu, "add_new_shape_layer");
         addActionToMenu(m_newLayerMenu, "add_new_adjustment_layer");
         addActionToMenu(m_newLayerMenu, "add_new_fill_layer");
         addActionToMenu(m_newLayerMenu, "add_new_file_layer");
         m_newLayerMenu->addSeparator();
         addActionToMenu(m_newLayerMenu, "add_new_transparency_mask");
         addActionToMenu(m_newLayerMenu, "add_new_filter_mask");
         addActionToMenu(m_newLayerMenu, "add_new_colorize_mask");
         addActionToMenu(m_newLayerMenu, "add_new_transform_mask");
         addActionToMenu(m_newLayerMenu, "add_new_selection_mask");
     }
 
 }
 
 
 void LayerBox::unsetCanvas()
 {
     setEnabled(false);
     if (m_canvas) {
         m_newLayerMenu->clear();
     }
 
     m_filteringModel->unsetDummiesFacade();
     disconnect(m_image, 0, this, 0);
     disconnect(m_nodeManager, 0, this, 0);
     disconnect(m_nodeModel, 0, m_nodeManager, 0);
     m_nodeManager->slotSetSelectedNodes(KisNodeList());
 
     m_canvas = 0;
 }
 
 void LayerBox::notifyImageDeleted()
 {
     setCanvas(0);
 }
 
 void LayerBox::updateUI()
 {
     if (!m_canvas) return;
     if (!m_nodeManager) return;
 
     KisNodeSP activeNode = m_nodeManager->activeNode();
 
     if (activeNode != m_activeNode) {
         if( !m_activeNode.isNull() )
             m_activeNode->disconnect(this);
         m_activeNode = activeNode;
 
         if (activeNode) {
             KisKeyframeChannel *opacityChannel = activeNode->getKeyframeChannel(KisKeyframeChannel::Opacity.id(), false);
             if (opacityChannel) {
                 watchOpacityChannel(opacityChannel);
             } else {
                 watchOpacityChannel(0);
                 connect(activeNode.data(), &KisNode::keyframeChannelAdded, this, &LayerBox::slotKeyframeChannelAdded);
             }
         }
     }
 
     m_wdgLayerBox->bnRaise->setEnabled(activeNode && activeNode->isEditable(false) && (activeNode->nextSibling()
                                                                                        || (activeNode->parent() && activeNode->parent() != m_image->root())));
     m_wdgLayerBox->bnLower->setEnabled(activeNode && activeNode->isEditable(false) && (activeNode->prevSibling()
                                                                                        || (activeNode->parent() && activeNode->parent() != m_image->root())));
 
     m_wdgLayerBox->doubleOpacity->setEnabled(activeNode && activeNode->isEditable(false));
 
     m_wdgLayerBox->cmbComposite->setEnabled(activeNode && activeNode->isEditable(false));
     m_wdgLayerBox->cmbComposite->validate(m_image->colorSpace());
 
     if (activeNode) {
         if (activeNode->inherits("KisColorizeMask") ||
                 activeNode->inherits("KisLayer")) {
 
             m_wdgLayerBox->doubleOpacity->setEnabled(true);
 
             if (!m_wdgLayerBox->doubleOpacity->isDragging()) {
                 slotSetOpacity(activeNode->opacity() * 100.0 / 255);
             }
 
             const KoCompositeOp* compositeOp = activeNode->compositeOp();
             if (compositeOp) {
                 slotSetCompositeOp(compositeOp);
             } else {
                 m_wdgLayerBox->cmbComposite->setEnabled(false);
             }
 
             const KisGroupLayer *group = qobject_cast<const KisGroupLayer*>(activeNode.data());
             bool compositeSelectionActive = !(group && group->passThroughMode());
 
             m_wdgLayerBox->cmbComposite->setEnabled(compositeSelectionActive);
         } else if (activeNode->inherits("KisMask")) {
             m_wdgLayerBox->cmbComposite->setEnabled(false);
             m_wdgLayerBox->doubleOpacity->setEnabled(false);
         }
     }
 }
 
 
 /**
  * This method is called *only* when non-GUI code requested the
  * change of the current node
  */
 void LayerBox::setCurrentNode(KisNodeSP node)
 {
     m_filteringModel->setActiveNode(node);
 
     QModelIndex index = node ? m_filteringModel->indexFromNode(node) : QModelIndex();
     m_filteringModel->setData(index, true, KisNodeModel::ActiveRole);
     updateUI();
 }
 
 void LayerBox::slotModelReset()
 {
     if(m_nodeModel->hasDummiesFacade()) {
         QItemSelection selection;
         Q_FOREACH (const KisNodeSP node, m_nodeManager->selectedNodes()) {
             const QModelIndex &idx = m_filteringModel->indexFromNode(node);
             if(idx.isValid()){
                 QItemSelectionRange selectionRange(idx);
                 selection << selectionRange;
             }
         }
 
         m_wdgLayerBox->listLayers->selectionModel()->select(selection, QItemSelectionModel::ClearAndSelect);
     }
 
     updateUI();
 }
 
 void LayerBox::slotSetCompositeOp(const KoCompositeOp* compositeOp)
 {
     KoID opId = KoCompositeOpRegistry::instance().getKoID(compositeOp->id());
 
     m_wdgLayerBox->cmbComposite->blockSignals(true);
     m_wdgLayerBox->cmbComposite->selectCompositeOp(opId);
     m_wdgLayerBox->cmbComposite->blockSignals(false);
 }
 
 // range: 0-100
 void LayerBox::slotSetOpacity(double opacity)
 {
     Q_ASSERT(opacity >= 0 && opacity <= 100);
     m_wdgLayerBox->doubleOpacity->blockSignals(true);
     m_wdgLayerBox->doubleOpacity->setValue(opacity);
     m_wdgLayerBox->doubleOpacity->blockSignals(false);
 }
 
 void LayerBox::slotContextMenuRequested(const QPoint &pos, const QModelIndex &index)
 {
     KisNodeList nodes = m_nodeManager->selectedNodes();
     KisNodeSP activeNode = m_nodeManager->activeNode();
     if (nodes.isEmpty() || !activeNode) return;
 
     if (m_canvas) {
         QMenu menu;
 
         const bool singleLayer = nodes.size() == 1;
 
         if (index.isValid()) {
             menu.addAction(m_propertiesAction);
 
             if (singleLayer) {
                 addActionToMenu(&menu, "layer_style");
             }
 
             {
                 KisSignalsBlocker b(m_colorSelector);
                 m_colorSelector->setCurrentIndex(singleLayer ? activeNode->colorLabelIndex() : -1);
             }
             menu.addAction(m_colorSelectorAction);
 
             menu.addSeparator();
 
             addActionToMenu(&menu, "cut_layer_clipboard");
             addActionToMenu(&menu, "copy_layer_clipboard");
             addActionToMenu(&menu, "paste_layer_from_clipboard");
             menu.addAction(m_removeAction);
             addActionToMenu(&menu, "duplicatelayer");
             addActionToMenu(&menu, "merge_layer");
 
             if (singleLayer) {
                 addActionToMenu(&menu, "flatten_image");
                 addActionToMenu(&menu, "flatten_layer");
             }
 
             menu.addSeparator();
             QMenu *selectMenu = menu.addMenu(i18n("&Select"));
             addActionToMenu(selectMenu, "select_all_layers");
             addActionToMenu(selectMenu, "select_visible_layers");
             addActionToMenu(selectMenu, "select_invisible_layers");
             addActionToMenu(selectMenu, "select_locked_layers");
             addActionToMenu(selectMenu, "select_unlocked_layers");
             QMenu *groupMenu = menu.addMenu(i18n("&Group"));
             addActionToMenu(groupMenu, "create_quick_group");
             addActionToMenu(groupMenu, "create_quick_clipping_group");
             addActionToMenu(groupMenu, "quick_ungroup");
             QMenu *locksMenu = menu.addMenu(i18n("&Toggle Locks && Visibility"));
             addActionToMenu(locksMenu, "toggle_layer_visibility");
             addActionToMenu(locksMenu, "toggle_layer_lock");
             addActionToMenu(locksMenu, "toggle_layer_inherit_alpha");
             addActionToMenu(locksMenu, "toggle_layer_alpha_lock");
 
             if (singleLayer) {
                 QMenu *addLayerMenu = menu.addMenu(i18n("&Add"));
                 addActionToMenu(addLayerMenu, "add_new_transparency_mask");
                 addActionToMenu(addLayerMenu, "add_new_filter_mask");
                 addActionToMenu(addLayerMenu, "add_new_colorize_mask");
                 addActionToMenu(addLayerMenu, "add_new_transform_mask");
                 addActionToMenu(addLayerMenu, "add_new_selection_mask");
 
                 QMenu *convertToMenu = menu.addMenu(i18n("&Convert"));
                 addActionToMenu(convertToMenu, "convert_to_paint_layer");
                 addActionToMenu(convertToMenu, "convert_to_transparency_mask");
                 addActionToMenu(convertToMenu, "convert_to_filter_mask");
                 addActionToMenu(convertToMenu, "convert_to_selection_mask");
                 addActionToMenu(convertToMenu, "convert_to_file_layer");
 
                 QMenu *splitAlphaMenu = menu.addMenu(i18n("S&plit Alpha"));
                 addActionToMenu(splitAlphaMenu, "split_alpha_into_mask");
                 addActionToMenu(splitAlphaMenu, "split_alpha_write");
                 addActionToMenu(splitAlphaMenu, "split_alpha_save_merged");
             }
 
             menu.addSeparator();
 
             addActionToMenu(&menu, "show_in_timeline");
 
             if (singleLayer) {
                 KisNodeSP node = m_filteringModel->nodeFromIndex(index);
                 if (node && !node->inherits("KisTransformMask")) {
                     addActionToMenu(&menu, "isolate_layer");
                 }
 
                 addActionToMenu(&menu, "selectopaque");
+
+                if (node && node->inherits("KisCloneLayer")) {
+                     menu.addAction(m_changeCloneSourceAction);
+                }
             }
         }
         menu.exec(pos);
     }
 }
 
 void LayerBox::slotMinimalView()
 {
     m_wdgLayerBox->listLayers->setDisplayMode(NodeView::MinimalMode);
 }
 
 void LayerBox::slotDetailedView()
 {
     m_wdgLayerBox->listLayers->setDisplayMode(NodeView::DetailedMode);
 }
 
 void LayerBox::slotThumbnailView()
 {
     m_wdgLayerBox->listLayers->setDisplayMode(NodeView::ThumbnailMode);
 }
 
 void LayerBox::slotRmClicked()
 {
     if (!m_canvas) return;
     m_nodeManager->removeNode();
 }
 
 void LayerBox::slotRaiseClicked()
 {
     if (!m_canvas) return;
     m_nodeManager->raiseNode();
 }
 
 void LayerBox::slotLowerClicked()
 {
     if (!m_canvas) return;
     m_nodeManager->lowerNode();
 }
 
 void LayerBox::slotPropertiesClicked()
 {
     if (!m_canvas) return;
     if (KisNodeSP active = m_nodeManager->activeNode()) {
         m_nodeManager->nodeProperties(active);
     }
 }
 
+void LayerBox::slotChangeCloneSourceClicked()
+{
+    if (!m_canvas) return;
+    m_nodeManager->changeCloneSource();
+}
+
 void LayerBox::slotCompositeOpChanged(int index)
 {
     Q_UNUSED(index);
     if (!m_canvas) return;
 
     QString compositeOp = m_wdgLayerBox->cmbComposite->selectedCompositeOp().id();
     m_nodeManager->nodeCompositeOpChanged(m_nodeManager->activeColorSpace()->compositeOp(compositeOp));
 }
 
 void LayerBox::slotOpacityChanged()
 {
     if (!m_canvas) return;
     m_blockOpacityUpdate = true;
     m_nodeManager->nodeOpacityChanged(m_newOpacity);
     m_blockOpacityUpdate = false;
 }
 
 void LayerBox::slotOpacitySliderMoved(qreal opacity)
 {
     m_newOpacity = opacity;
     m_opacityDelayTimer.start(200);
 }
 
 void LayerBox::slotCollapsed(const QModelIndex &index)
 {
     KisNodeSP node = m_filteringModel->nodeFromIndex(index);
     if (node) {
         node->setCollapsed(true);
     }
 }
 
 void LayerBox::slotExpanded(const QModelIndex &index)
 {
     KisNodeSP node = m_filteringModel->nodeFromIndex(index);
     if (node) {
         node->setCollapsed(false);
     }
 }
 
 void LayerBox::slotSelectOpaque()
 {
     if (!m_canvas) return;
     QAction *action = m_canvas->viewManager()->actionManager()->actionByName("selectopaque");
     if (action) {
         action->trigger();
     }
 }
 
 void LayerBox::slotNodeCollapsedChanged()
 {
     expandNodesRecursively(m_image->rootLayer(), m_filteringModel, m_wdgLayerBox->listLayers);
 }
 
 inline bool isSelectionMask(KisNodeSP node)
 {
     return dynamic_cast<KisSelectionMask*>(node.data());
 }
 
 KisNodeSP LayerBox::findNonHidableNode(KisNodeSP startNode)
 {
     if (KisNodeManager::isNodeHidden(startNode, true) &&
             startNode->parent() &&
             !startNode->parent()->parent()) {
 
 
         KisNodeSP node = startNode->prevSibling();
         while (node && KisNodeManager::isNodeHidden(node, true)) {
             node = node->prevSibling();
         }
 
         if (!node) {
             node = startNode->nextSibling();
             while (node && KisNodeManager::isNodeHidden(node, true)) {
                 node = node->nextSibling();
             }
         }
 
         if (!node) {
             node = m_image->root()->lastChild();
             while (node && KisNodeManager::isNodeHidden(node, true)) {
                 node = node->prevSibling();
             }
         }
 
         KIS_ASSERT_RECOVER_NOOP(node && "cannot activate any node!");
         startNode = node;
     }
 
     return startNode;
 }
 
 void LayerBox::slotEditGlobalSelection(bool showSelections)
 {
     KisNodeSP lastActiveNode = m_nodeManager->activeNode();
     KisNodeSP activateNode = lastActiveNode;
     KisSelectionMaskSP globalSelectionMask;
 
     if (!showSelections) {
         activateNode = findNonHidableNode(activateNode);
     }
 
     m_nodeModel->setShowGlobalSelection(showSelections);
 
     globalSelectionMask = m_image->rootLayer()->selectionMask();
 
     // try to find deactivated, but visible masks
     if (!globalSelectionMask) {
         KoProperties properties;
         properties.setProperty("visible", true);
         QList<KisNodeSP> masks = m_image->rootLayer()->childNodes(QStringList("KisSelectionMask"), properties);
         if (!masks.isEmpty()) {
             globalSelectionMask = dynamic_cast<KisSelectionMask*>(masks.first().data());
         }
     }
 
     // try to find at least any selection mask
     if (!globalSelectionMask) {
         KoProperties properties;
         QList<KisNodeSP> masks = m_image->rootLayer()->childNodes(QStringList("KisSelectionMask"), properties);
         if (!masks.isEmpty()) {
             globalSelectionMask = dynamic_cast<KisSelectionMask*>(masks.first().data());
         }
     }
 
     if (globalSelectionMask) {
         if (showSelections) {
             activateNode = globalSelectionMask;
         }
     }
 
     if (activateNode != lastActiveNode) {
         m_nodeManager->slotNonUiActivatedNode(activateNode);
     } else if (lastActiveNode) {
         setCurrentNode(lastActiveNode);
     }
 
     if (showSelections && !globalSelectionMask) {
         KisProcessingApplicator applicator(m_image, 0,
                                            KisProcessingApplicator::NONE,
                                            KisImageSignalVector() << ModifiedSignal,
                                            kundo2_i18n("Quick Selection Mask"));
 
         applicator.applyCommand(
             new KisLayerUtils::KeepNodesSelectedCommand(
                 m_nodeManager->selectedNodes(), KisNodeList(),
                 lastActiveNode, 0, m_image, false),
             KisStrokeJobData::SEQUENTIAL, KisStrokeJobData::EXCLUSIVE);
         applicator.applyCommand(new KisSetEmptyGlobalSelectionCommand(m_image),
                                 KisStrokeJobData::SEQUENTIAL,
                                 KisStrokeJobData::EXCLUSIVE);
         applicator.applyCommand(new KisLayerUtils::SelectGlobalSelectionMask(m_image),
                                 KisStrokeJobData::SEQUENTIAL,
                                 KisStrokeJobData::EXCLUSIVE);
 
         applicator.end();
     } else if (!showSelections &&
                globalSelectionMask &&
                globalSelectionMask->selection()->selectedRect().isEmpty()) {
 
         KisProcessingApplicator applicator(m_image, 0,
                                            KisProcessingApplicator::NONE,
                                            KisImageSignalVector() << ModifiedSignal,
                                            kundo2_i18n("Cancel Quick Selection Mask"));
         applicator.applyCommand(new KisSetGlobalSelectionCommand(m_image, 0), KisStrokeJobData::SEQUENTIAL, KisStrokeJobData::EXCLUSIVE);
         applicator.end();
     }
 
 }
 
 void LayerBox::selectionChanged(const QModelIndexList selection)
 {
     if (!m_nodeManager) return;
 
     /**
      * When the user clears the extended selection by clicking on the
      * empty area of the docker, the selection should be reset on to
      * the active layer, which might be even unselected(!).
      */
     if (selection.isEmpty() && m_nodeManager->activeNode()) {
         QModelIndex selectedIndex =
                 m_filteringModel->indexFromNode(m_nodeManager->activeNode());
 
         m_wdgLayerBox->listLayers->selectionModel()->
                 setCurrentIndex(selectedIndex, QItemSelectionModel::ClearAndSelect);
         return;
     }
 
     QList<KisNodeSP> selectedNodes;
     Q_FOREACH (const QModelIndex &idx, selection) {
         selectedNodes << m_filteringModel->nodeFromIndex(idx);
     }
 
     m_nodeManager->slotSetSelectedNodes(selectedNodes);
     updateUI();
 }
 
 void LayerBox::slotAboutToRemoveRows(const QModelIndex &parent, int start, int end)
 {
     /**
      * Qt has changed its behavior when deleting an item. Previously
      * the selection priority was on the next item in the list, and
      * now it has shanged to the previous item. Here we just adjust
      * the selected item after the node removal. Please take care that
      * this method overrides what was done by the corresponding method
      * of QItemSelectionModel, which *has already done* its work. That
      * is why we use (start - 1) and (end + 1) in the activation
      * condition.
      *
      * See bug: https://bugs.kde.org/show_bug.cgi?id=345601
      */
 
     QModelIndex currentIndex = m_wdgLayerBox->listLayers->currentIndex();
     QAbstractItemModel *model = m_filteringModel;
 
     if (currentIndex.isValid() && parent == currentIndex.parent()
             && currentIndex.row() >= start - 1 && currentIndex.row() <= end + 1) {
         QModelIndex old = currentIndex;
         if (model && end < model->rowCount(parent) - 1) // there are rows left below the change
             currentIndex = model->index(end + 1, old.column(), parent);
         else if (start > 0) // there are rows left above the change
             currentIndex = model->index(start - 1, old.column(), parent);
         else // there are no rows left in the table
             currentIndex = QModelIndex();
 
         if (currentIndex.isValid() && currentIndex != old) {
             m_wdgLayerBox->listLayers->setCurrentIndex(currentIndex);
         }
     }
 }
 
 void LayerBox::slotNodeManagerChangedSelection(const KisNodeList &nodes)
 {
     if (!m_nodeManager) return;
 
     QModelIndexList newSelection;
     Q_FOREACH(KisNodeSP node, nodes) {
         newSelection << m_filteringModel->indexFromNode(node);
     }
 
     QItemSelectionModel *model = m_wdgLayerBox->listLayers->selectionModel();
 
     if (KritaUtils::compareListsUnordered(newSelection, model->selectedIndexes())) {
         return;
     }
 
     QItemSelection selection;
     Q_FOREACH(const QModelIndex &idx, newSelection) {
         selection.select(idx, idx);
     }
 
     model->select(selection, QItemSelectionModel::ClearAndSelect);
 }
 
 void LayerBox::updateThumbnail()
 {
     m_wdgLayerBox->listLayers->updateNode(m_wdgLayerBox->listLayers->currentIndex());
 }
 
 void LayerBox::slotRenameCurrentNode()
 {
     m_wdgLayerBox->listLayers->edit(m_wdgLayerBox->listLayers->currentIndex());
 }
 
 void LayerBox::slotColorLabelChanged(int label)
 {
     KisNodeList nodes = m_nodeManager->selectedNodes();
 
     Q_FOREACH(KisNodeSP node, nodes) {
         auto applyLabelFunc =
                 [label](KisNodeSP node) {
             node->setColorLabelIndex(label);
         };
 
         KisLayerUtils::recursiveApplyNodes(node, applyLabelFunc);
     }
 }
 
 void LayerBox::updateAvailableLabels()
 {
     if (!m_image) return;
     m_wdgLayerBox->cmbFilter->updateAvailableLabels(m_image->root());
 }
 
 void LayerBox::updateLayerFiltering()
 {
     m_filteringModel->setAcceptedLabels(m_wdgLayerBox->cmbFilter->selectedColors());
 }
 
 void LayerBox::slotKeyframeChannelAdded(KisKeyframeChannel *channel)
 {
     if (channel->id() == KisKeyframeChannel::Opacity.id()) {
         watchOpacityChannel(channel);
     }
 }
 
 void LayerBox::watchOpacityChannel(KisKeyframeChannel *channel)
 {
     if (m_opacityChannel) {
         m_opacityChannel->disconnect(this);
     }
 
     m_opacityChannel = channel;
     if (m_opacityChannel) {
         connect(m_opacityChannel, SIGNAL(sigKeyframeAdded(KisKeyframeSP)), this, SLOT(slotOpacityKeyframeChanged(KisKeyframeSP)));
         connect(m_opacityChannel, SIGNAL(sigKeyframeRemoved(KisKeyframeSP)), this, SLOT(slotOpacityKeyframeChanged(KisKeyframeSP)));
         connect(m_opacityChannel, SIGNAL(sigKeyframeMoved(KisKeyframeSP)), this, SLOT(slotOpacityKeyframeMoved(KisKeyframeSP)));
         connect(m_opacityChannel, SIGNAL(sigKeyframeChanged(KisKeyframeSP)), this, SLOT(slotOpacityKeyframeChanged(KisKeyframeSP)));
     }
 }
 
 void LayerBox::slotOpacityKeyframeChanged(KisKeyframeSP keyframe)
 {
     Q_UNUSED(keyframe);
     if (m_blockOpacityUpdate) return;
     updateUI();
 }
 
 void LayerBox::slotOpacityKeyframeMoved(KisKeyframeSP keyframe, int fromTime)
 {
     Q_UNUSED(fromTime);
     slotOpacityKeyframeChanged(keyframe);
 }
 
 void LayerBox::slotImageTimeChanged(int time)
 {
     Q_UNUSED(time);
     updateUI();
 }
 
 void LayerBox::slotUpdateIcons() {
     m_wdgLayerBox->bnAdd->setIcon(KisIconUtils::loadIcon("addlayer"));
     m_wdgLayerBox->bnRaise->setIcon(KisIconUtils::loadIcon("arrowupblr"));
     m_wdgLayerBox->bnDelete->setIcon(KisIconUtils::loadIcon("deletelayer"));
     m_wdgLayerBox->bnLower->setIcon(KisIconUtils::loadIcon("arrowdown"));
     m_wdgLayerBox->bnProperties->setIcon(KisIconUtils::loadIcon("properties"));
     m_wdgLayerBox->bnDuplicate->setIcon(KisIconUtils::loadIcon("duplicatelayer"));
 
     // call child function about needing to update icons
     m_wdgLayerBox->listLayers->slotUpdateIcons();
 }
 
 void LayerBox::slotUpdateThumbnailIconSize()
 {
     KisConfig cfg(false);
     cfg.setLayerThumbnailSize(thumbnailSizeSlider->value());
 
     // this is a hack to force the layers list to update its display and
     // re-layout all the layers with the new thumbnail size
     resize(this->width()+1, this->height()+1);
     resize(this->width()-1, this->height()-1);
 }
 
 
 #include "moc_LayerBox.cpp"
diff --git a/plugins/dockers/layerdocker/LayerBox.h b/plugins/dockers/layerdocker/LayerBox.h
index 8bef83e1c2..61e6d6ea75 100644
--- a/plugins/dockers/layerdocker/LayerBox.h
+++ b/plugins/dockers/layerdocker/LayerBox.h
@@ -1,200 +1,202 @@
 /*
  *  LayerBox.h - part of Krita aka Krayon aka KimageShop
  *
  *  Copyright (c) 2002 Patrick Julien <freak@codepimps.org>
  *  Copyright (C) 2006 Gábor Lehel <illissius@gmail.com>
  *  Copyright (C) 2007 Thomas Zander <zander@kde.org>
  *  Copyright (C) 2007-2009 Boudewijn Rempt <boud@valdyas.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 #ifndef KIS_LAYERBOX_H
 #define KIS_LAYERBOX_H
 
 #include <QFrame>
 #include <QList>
 #include <QDockWidget>
 #include <QPointer>
 #include <QTimer>
 
 #include <kis_debug.h>
 
 #include <KoColorSpace.h>
 #include <KoDockFactoryBase.h>
 
 #include <kis_types.h>
 
 #include "kis_action.h"
 #include "KisViewManager.h"
 #include "kis_mainwindow_observer.h"
 #include "kis_signal_compressor.h"
 #include <QSlider>
 
 class QModelIndex;
 
 typedef QList<QModelIndex> QModelIndexList;
 
 class QMenu;
 class QAbstractButton;
 class KoCompositeOp;
 class KisCanvas2;
 class KisNodeModel;
 class KisNodeFilterProxyModel;
 class Ui_WdgLayerBox;
 class KisNodeJugglerCompressed;
 class KisColorLabelSelectorWidget;
 class QWidgetAction;
 class KisKeyframeChannel;
 class KisSelectionActionsAdapter;
 
 /**
  * A widget that shows a visualization of the layer structure.
  *
  * The center of the layer box is KisNodeModel, which shows the actual layers.
  * This widget adds docking functionality and command buttons.
  *
  */
 class LayerBox : public QDockWidget, public KisMainwindowObserver
 {
 
     Q_OBJECT
 
 public:
 
     LayerBox();
     ~LayerBox() override;
     QString observerName() override { return "LayerBox"; }
     /// reimplemented from KisMainwindowObserver
     void setViewManager(KisViewManager* kisview) override;
     void setCanvas(KoCanvasBase *canvas) override;
     void unsetCanvas() override;
 private Q_SLOTS:
 
     void notifyImageDeleted();
 
     void slotContextMenuRequested(const QPoint &pos, const QModelIndex &index);
 
     void slotMinimalView();
     void slotDetailedView();
     void slotThumbnailView();
 
     // From the node manager to the layerbox
     void slotSetCompositeOp(const KoCompositeOp* compositeOp);
     void slotSetOpacity(double opacity);
     void updateUI();
     void setCurrentNode(KisNodeSP node);
     void slotModelReset();
 
 
     // from the layerbox to the node manager
     void slotRmClicked();
     void slotRaiseClicked();
     void slotLowerClicked();
     void slotPropertiesClicked();
+    void slotChangeCloneSourceClicked();
 
     void slotCompositeOpChanged(int index);
     void slotOpacityChanged();
     void slotOpacitySliderMoved(qreal opacity);
 
     void slotCollapsed(const QModelIndex &index);
     void slotExpanded(const QModelIndex &index);
 
     void slotSelectOpaque();
     void slotNodeCollapsedChanged();
 
     void slotEditGlobalSelection(bool showSelections);
     void slotRenameCurrentNode();
 
     void slotAboutToRemoveRows(const QModelIndex &parent, int first, int last);
     void selectionChanged(const QModelIndexList selection);
     void slotNodeManagerChangedSelection(const QList<KisNodeSP> &nodes);
     void slotColorLabelChanged(int index);
     void slotUpdateIcons();
 
     void slotAddLayerBnClicked();
 
     void updateThumbnail();
     void updateAvailableLabels();
     void updateLayerFiltering();
 
     void slotUpdateThumbnailIconSize();
 
 
     // Opacity keyframing
     void slotKeyframeChannelAdded(KisKeyframeChannel *channel);
     void slotOpacityKeyframeChanged(KisKeyframeSP keyframe);
     void slotOpacityKeyframeMoved(KisKeyframeSP keyframe, int fromTime);
     void slotImageTimeChanged(int time);
 
 private:
     inline void connectActionToButton(KisViewManager* view, QAbstractButton *button, const QString &id);
     inline void addActionToMenu(QMenu *menu, const QString &id);
     void watchOpacityChannel(KisKeyframeChannel *channel);
 
     KisNodeSP findNonHidableNode(KisNodeSP startNode);
 private:
 
     QPointer<KisCanvas2> m_canvas;
     QScopedPointer<KisSelectionActionsAdapter> m_selectionActionsAdapter;
     QMenu *m_newLayerMenu;
     KisImageWSP m_image;
     QPointer<KisNodeModel> m_nodeModel;
     QPointer<KisNodeFilterProxyModel> m_filteringModel;
     QPointer<KisNodeManager> m_nodeManager;
     QPointer<KisColorLabelSelectorWidget> m_colorSelector;
     QPointer<QWidgetAction> m_colorSelectorAction;
     Ui_WdgLayerBox* m_wdgLayerBox;
     QTimer m_opacityDelayTimer;
     int m_newOpacity;
 
     QVector<KisAction*> m_actions;
     KisAction* m_removeAction;
     KisAction* m_propertiesAction;
+    KisAction* m_changeCloneSourceAction;
     KisSignalCompressor m_thumbnailCompressor;
     KisSignalCompressor m_colorLabelCompressor;
     KisSignalCompressor m_thumbnailSizeCompressor;
 
     QSlider* thumbnailSizeSlider;
 
     KisNodeSP m_activeNode;
     QPointer<KisKeyframeChannel> m_opacityChannel;
     bool m_blockOpacityUpdate {false};
 };
 
 class LayerBoxFactory : public KoDockFactoryBase
 {
 
 public:
     LayerBoxFactory() { }
 
     QString id() const override {
         return QString("KisLayerBox");
     }
 
     QDockWidget* createDockWidget() override {
         LayerBox * dockWidget = new LayerBox();
 
         dockWidget->setObjectName(id());
 
         return dockWidget;
     }
 
     DockPosition defaultDockPosition() const override {
         return DockRight;
     }
 };
 
 #endif // KIS_LAYERBOX_H