We're developing an application in which we handle local copy/pastes within the diagram by using the extension point org.eclipse.gmf.runtime.emf.clipboard.core.clipboardSupport
Copy/Paste events of resources in views are handled using a handler with the commandId org.eclipse.ui.edit.copy/paste
My question is , what's the correct way of handling copy/paste events between the diagram (or any GraphicalEditor for that matter) and other views in the application?
Currently, I was managed to solve it programatically, putting this code in the DiagramEditor initialization method:
IActionBars actionBars = site.getActionBars();
EditPartViewer diagramGraphicalViewer = getDiagramGraphicalViewer();
actionBars.setGlobalActionHandler(GEFActionConstants.PASTE, new PasteMethodNodeAction(clipboard,diagramGraphicalViewer));
But it overrides the other paste listeners of the Editor and generally interrupts our design.
Any ideas will be welcome 
Home