if (mm.find(IWorkingSetActionGroup.ACTION_GROUP) == null) { mm.add(new Separator(IWorkingSetActionGroup.ACTION_GROUP)); }
	public void fillViewMenu(IMenuManager mm) {		add(mm, fSelectWorkingSetAction);		add(mm, fClearWorkingSetAction);		add(mm, fEditWorkingSetAction);		add(mm, new Separator());		add(mm, new Separator(LRU_GROUP));		addLRUWorkingSetActions(mm);				fMenuManager= mm;		fMenuListener= new IMenuListener() {			public void menuAboutToShow(IMenuManager manager) {				removePreviousLRUWorkingSetActions(manager);				addLRUWorkingSetActions(manager);			}		};		fMenuManager.addMenuListener(fMenuListener);	}