Bug 176043 [Commands] Need to be able to restore the toolbar without breking plug-in boundaries
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/WorkbenchActionBuilder.java
menu.add(helpContentsAction);
        menu.add(helpSearchAction);
		menu.add(dynamicHelpAction);
		addSeparatorOrGroupMarker(menu, "group.assist"); 
		
		if (tipsAndTricksAction != null) {
			menu.add(tipsAndTricksAction);
		}
		
		
		menu.add(new GroupMarker(IWorkbenchActionConstants.HELP_START));
		menu.add(new GroupMarker("group.main.ext")); 
		addSeparatorOrGroupMarker(menu, "group.tutorials"); 
		addSeparatorOrGroupMarker(menu, "group.tools"); 
		addSeparatorOrGroupMarker(menu, "group.updates"); 
		menu.add(new GroupMarker(IWorkbenchActionConstants.HELP_END));
		addSeparatorOrGroupMarker(menu, IWorkbenchActionConstants.MB_ADDITIONS);
		
		menu.add(new Separator("group.about")); 
		
		ActionContributionItem aboutItem = new ActionContributionItem(aboutAction);
		aboutItem.setVisible(!"carbon".equals(SWT.getPlatform())); 
        menu.add(aboutItem);
		menu.add(new GroupMarker("group.about.ext")); 
        return menu;
    }
    /**
	 * Adds a <code>GroupMarker</code> or <code>Separator</code> to a menu.
	 * The test for whether a separator should be added is done by checking for
	 * the existence of a preference matching the string