Currently it looks like the functionality of the Custom Admin Bar is Limited

I would like to create an admin menu bar like wmpu. It seems that this is not possible with the current setup. I have a duplicate ticket here but I wanted to make a function request. Simply let people add menus similar to top wpmu where you can have multiple top level links and sub menus. If this is possible now then please explain. Currently the custom admin bar is fairly useless to me.

Best Regards
@Hatchman