Added grouping action

resources/qml/Actions.qml

@@ -3,6 +3,7 @@
 
 import QtQuick 2.2
 import QtQuick.Controls 1.1
+import UM 1.0 as UM
 
 Item {
     property alias open: openAction;
@@ -16,6 +17,7 @@ Item {
 
     property alias deleteObject: deleteObjectAction;
     property alias centerObject: centerObjectAction;
+    property alias groupObjects: groupObjectsAction;
     property alias multiplyObject: multiplyObjectAction;
     property alias splitObject: splitObjectAction;
 
@@ -120,6 +122,13 @@ Item {
         //: Center object action
         text: qsTr("Center Object on Platform");
     }
+    
+    Action
+    {
+        id: groupObjectsAction
+        text: qsTr("Group objects");
+        enabled: UM.Scene.numObjectsSelected > 1 ? true: false
+    }
 
     Action {
         id: multiplyObjectAction;

resources/qml/Cura.qml

@@ -347,6 +347,11 @@ UM.MainWindow {
                 objectContextMenu.objectId = 0;
             }
         }
+        
+        groupObjects.onTriggered:
+        {
+            Printer.groupSelected()
+        }
 
         deleteAll.onTriggered: Printer.deleteAll()
         resetAllTranslation.onTriggered: Printer.resetAllTranslation()
@@ -373,6 +378,7 @@ UM.MainWindow {
         MenuItem { action: actions.deleteObject; }
         MenuItem { action: actions.multiplyObject; }
         MenuItem { action: actions.splitObject; }
+        MenuItem { action: actions.groupObjects;}
         MenuSeparator { }
         MenuItem { action: actions.deleteAll; }
         MenuItem { action: actions.reloadAll; }