Index: kcms/workspaceoptions/CMakeLists.txt
===================================================================
--- kcms/workspaceoptions/CMakeLists.txt
+++ kcms/workspaceoptions/CMakeLists.txt
@@ -13,6 +13,8 @@
     KF5::I18n
     KF5::ConfigWidgets
     KF5::Declarative
+
+    Qt5::DBus
 )
 
 kcoreaddons_desktop_to_json(kcm_workspace "kcm_workspace.desktop" SERVICE_TYPES kcmodule.desktop)
Index: kcms/workspaceoptions/package/contents/ui/main.qml
===================================================================
--- kcms/workspaceoptions/package/contents/ui/main.qml
+++ kcms/workspaceoptions/package/contents/ui/main.qml
@@ -32,14 +32,13 @@
         Layouts.ColumnLayout {
             id: maincol
             spacing: units.largeSpacing
+            leftPadding: units.smallSpacing
 
             // General Settings
             Column {
                 spacing: units.smallSpacing
-                leftPadding: units.smallSpacing
 
                 Controls.Label {
-                    id: generalSettings
                     text: i18n("General Settings")
                 }
 
@@ -63,6 +62,38 @@
                     onVisualFeedbackChanged: showVisualFeedback.checked = kcm.visualFeedback
                 }
             }
+
+            // ClickBehaviour Settings
+            Column {
+                spacing: units.smallSpacing
+                Controls.ExclusiveGroup { id: clickBehaviourGroup }
+
+                Controls.Label {
+                    text: i18n("Click Behaviour")
+                }
+
+                Controls.RadioButton {
+                    id: singleClick
+                    text: i18n("Single-click to open files and folders")
+                    checked: kcm.singleClick
+                    exclusiveGroup: clickBehaviourGroup
+                    onCheckedChanged: kcm.singleClick = checked
+                }
+
+                Controls.RadioButton {
+                    id: doubleClick
+                    text: i18n("Double-click to open files and folders (select icons on first click)")
+                    exclusiveGroup: clickBehaviourGroup
+                }
+
+                Connections {
+                    target: kcm
+                    onSingleClickChanged: {
+                        singleClick.checked = kcm.singleClick
+                        doubleClick.checked = !singleClick.checked
+                    }
+                }
+            }
         } // END Layouts.ColumnLayout
     } // END Controls.ScrollView
 } // END Item
Index: kcms/workspaceoptions/workspaceoptions.h
===================================================================
--- kcms/workspaceoptions/workspaceoptions.h
+++ kcms/workspaceoptions/workspaceoptions.h
@@ -25,6 +25,7 @@
     Q_OBJECT
     Q_PROPERTY(bool toolTip READ getToolTip WRITE setToolTip NOTIFY toolTipChanged)
     Q_PROPERTY(bool visualFeedback READ getVisualFeedback WRITE setVisualFeedback NOTIFY visualFeedbackChanged)
+    Q_PROPERTY(bool singleClick READ getSingleClick WRITE setSingleClick NOTIFY singleClickChanged)
 
 public:
     KCMWorkspaceOptions(QObject* parent, const QVariantList& args);
@@ -37,14 +38,18 @@
     bool getVisualFeedback() const;
     void setVisualFeedback(bool state);
 
+    bool getSingleClick() const;
+    void setSingleClick(bool state);
+
 public Q_SLOTS:
     void load();
     void save();
     void defaults();
 
 Q_SIGNALS:
     void toolTipChanged();
     void visualFeedbackChanged();
+    void singleClickChanged();
 
 private:
     void handleNeedsSave();
@@ -55,6 +60,9 @@
 
     bool m_ostateVisualFeedback;
     bool m_stateVisualFeedback;
+
+    bool m_ostateSingleClick;
+    bool m_stateSingleClick;
 };
 
 #endif  // _KCM_WORKSPACEOPTIONS_H
Index: kcms/workspaceoptions/workspaceoptions.cpp
===================================================================
--- kcms/workspaceoptions/workspaceoptions.cpp
+++ kcms/workspaceoptions/workspaceoptions.cpp
@@ -21,15 +21,19 @@
 #include <KAboutData>
 #include <KLocalizedString>
 #include <KConfigGroup>
-
 #include <ksharedconfig.h>
+#include <../migrationlib/kdelibs4config.h>
+
+#include <QtDBus/QDBusMessage>
+#include <QtDBus/QDBusConnection>
 
 K_PLUGIN_FACTORY_WITH_JSON(KCMWorkspaceOptionsFactory, "kcm_workspace.json", registerPlugin<KCMWorkspaceOptions>();)
 
 KCMWorkspaceOptions::KCMWorkspaceOptions(QObject *parent, const QVariantList& args)
     : KQuickAddons::ConfigModule(parent, args),
       m_stateToolTip(true),
-      m_stateVisualFeedback(true)
+      m_stateVisualFeedback(true),
+      m_stateSingleClick(true)
 {
     KAboutData* about = new KAboutData(QStringLiteral("kcm_workspace"),
                     i18n("Plasma Workspace global options"),
@@ -43,7 +47,7 @@
     setButtons( Default | Apply );
 }
 
-/*ConfigModule functions*/
+//**ConfigModule functions
 void KCMWorkspaceOptions::load()
 {
     bool state = false;
@@ -65,6 +69,15 @@
         m_ostateVisualFeedback = getVisualFeedback();
     }
 
+    // Load singleClick
+    {
+        KSharedConfig::Ptr configKdeGlobals = KSharedConfig::openConfig(QStringLiteral("kdeglobals"));
+        const KConfigGroup cg(configKdeGlobals, QStringLiteral("KDE"));
+        state = cg.readEntry(QStringLiteral("SingleClick"), true);
+        setSingleClick(state);
+        m_ostateSingleClick = getSingleClick();
+    }
+
     setNeedsSave(false);
 }
 
@@ -86,19 +99,40 @@
         m_ostateVisualFeedback = getVisualFeedback();
     }
 
+    // Save singleClick
+    KSharedConfig::Ptr configKdeGlobals = KSharedConfig::openConfig(QStringLiteral("kdeglobals"));
+    KConfigGroup cg(configKdeGlobals, QStringLiteral("KDE"));
+    cg.writeEntry("SingleClick", getSingleClick());
+    m_ostateSingleClick = getSingleClick();
     config->sync();
+    configKdeGlobals->sync();
+
+    Kdelibs4SharedConfig::syncConfigGroup(QLatin1String("KDE"), "kdeglobals");
+
+    // See https://api.kde.org/frameworks/kdelibs4support/html/classKGlobalSettings.html
+    const int changeType__SettingsChanged = 3;  // 3 comes from KGlobalSettings
+    const int arg__SETTINGS_MOUSE = 0;          // 0 comes from KGlobalSettings
+    QDBusMessage message = QDBusMessage::createSignal("/KGlobalSettings", "org.kde.KGlobalSettings", "notifyChange");
+    QList<QVariant> args;
+    args.append(changeType__SettingsChanged);
+    args.append(arg__SETTINGS_MOUSE);
+    message.setArguments(args);
+    QDBusConnection::sessionBus().send(message);
+
+
     setNeedsSave(false);
 }
 
 void KCMWorkspaceOptions::defaults()
 {
     setToolTip(true);
     setVisualFeedback(true);
+    setSingleClick(true);
 
     handleNeedsSave();
 }
 
-/*ToolTip functions*/
+//** ToolTip functions
 bool KCMWorkspaceOptions::getToolTip() const
 {
     return m_stateToolTip;
@@ -117,7 +151,7 @@
     handleNeedsSave();
 }
 
-/*VisualFeedback functions*/
+//** VisualFeedback functions
 bool KCMWorkspaceOptions::getVisualFeedback() const
 {
     return m_stateVisualFeedback;
@@ -136,13 +170,33 @@
     handleNeedsSave();
 }
 
-/*Other functions*/
+//** SingleClick functions
+bool KCMWorkspaceOptions::getSingleClick() const
+{
+    return m_stateSingleClick;
+}
+
+void KCMWorkspaceOptions::setSingleClick(bool state)
+{
+    // Prevent from binding loop
+    if( m_stateSingleClick == state ) {
+        return;
+    }
+
+    m_stateSingleClick = state;
+
+    emit singleClickChanged();
+    handleNeedsSave();
+}
+
+//** Other functions
 // Checks if the current states are different than the first states.
 // If yes, setNeedsSave(true).
 void KCMWorkspaceOptions::handleNeedsSave()
 {
     setNeedsSave(m_ostateToolTip != getToolTip() ||
-            m_ostateVisualFeedback != getVisualFeedback());
+            m_ostateVisualFeedback != getVisualFeedback() ||
+            m_ostateSingleClick != getSingleClick());
 }
 
 #include "workspaceoptions.moc"