Hmm. I`ve never used the GUI. I`m always editing the files directly. But this new menu you are talking about... Is it a totally new right-click menu, or do you just want to add a new menu, inside the existing menu? Anyway, you should be able to add any items you want in the new menu, and remove them from the menus they were in.
I have two level of fragment in my application. The first fragment contain a menu and second fragment menu items. Initially fragment which contains menu is shown. If use select menu a items. It replaces menu fragment and shows content based on the selection of menu item. When i presses back button it shows menu fragment. But it not shown fully.
Just did a new install of CrunchBang-11-20120927-amd64. The GUI menu editor doesn't appear to be working properly. I can add new menu items and edit the ones that I add. I can't change pre-existing items (the ones that were there from the install). The Execute line is empty for the pre-existing items. I can enter a program name, but nothing gets saved to the menu.xml file.