Index: shell/ktexteditorpluginintegration.h
===================================================================
--- shell/ktexteditorpluginintegration.h
+++ shell/ktexteditorpluginintegration.h
@@ -77,6 +77,7 @@
     KTextEditor::View *activeView() const;
 
     QObject *pluginView(const QString &id) const;
+    void splitView(Qt::Orientation orientation);
 
     QWidget *createViewBar(KTextEditor::View *view);
 
Index: shell/ktexteditorpluginintegration.cpp
===================================================================
--- shell/ktexteditorpluginintegration.cpp
+++ shell/ktexteditorpluginintegration.cpp
@@ -38,6 +38,7 @@
 #include "plugincontroller.h"
 #include "mainwindow.h"
 #include "textdocument.h"
+#include "mainwindow_p.h"
 
 #include <util/objectlist.h>
 
@@ -349,6 +350,11 @@
     KTextEditor::Editor::instance()->setApplication(app);
 }
 
+void MainWindow::splitView(Qt::Orientation orientation)
+{
+    m_mainWindow->d->split(orientation);
+}
+
 }
 
 #include "ktexteditorpluginintegration.moc"
Index: shell/mainwindow.h
===================================================================
--- shell/mainwindow.h
+++ shell/mainwindow.h
@@ -48,6 +48,7 @@
 */
 class KDEVPLATFORMSHELL_EXPORT MainWindow: public Sublime::MainWindow {
     friend class UiController;
+    friend class KTextEditorIntegration::MainWindow;
     Q_OBJECT
     Q_CLASSINFO( "D-Bus Interface", "org.kdevelop.MainWindow" )
 public: