Creating separate department menus for each profile

Hi we are about to implement NAV 2013 into our group and I have been setting up user profiles and menus ready so I can allocate them to each user. I have figured out how to modify and lock down the menus and also remove the department menu. The issue I have is the department menu is very easy to use and looks good where if you just create another menu and add in the relevant links then remove the departments menu NAV just shows them in one list on the left. It just seems daft that the user even if restricted can drill down into another departments menu if I leave the default department menu on.

So my question is can I make a copy of the departments menu and then take out what I don’t need and allocate it to a profile then remove the default departments menu leaving the role centre home and the new restricted departments menu.