Until Ubuntu 10.04 in System->Administration menu there was the "Software Sources" utility available. Now with Ubuntu 10.10 it's only accessible from Synaptic package manager. Is it possible to restore this functionality in Ubuntu 10.10 menu?
All you need to do is right click the menu, open the menu editor, and add the item to your system menu.
The command you need to add is
It's also available inside the Software Center now, which is why it got removed from the menu I assume.
You can use also the alacarte app. Press Alt+F2 then type