For me this feature of hiding menu items in global menu is just annoying. Maybe there are people that doesn't need it, but I do, and it makes me longer to get there if I event can't see where it should be...
So how to see menu items all the time?
First install compiz-config:
sudo apt-get install compizconfig-settings-manager
example from: http://ubuntuguide.net/how-to-change-unity-sidebar-launcher-auto-hide-behaviour-in-ubuntu-11-04Then install revamped config: http://www.webupd8.org/2012/07/disable-global-menu-autohide-behaviour.html
Next open ubuntu config as in post above but open Experimental tab and at the bottom check "Menu Always Visible".That's it :)
But if you just doesn't want this you can remove it all together: http://www.liberiangeek.net/2012/04/disable-the-global-menu-in-ubuntu-12-04-precise-pangolin/