Originally Posted by daimon
Only way to make it remotely work with the custom toolbars and keybindings is to have your keybinds set to the stock toolbars and then making custom toolbars alike. After that disabling the stock toolbars from the options (mind that you can't make the shortcut one bar vanish, only with a custom skin that is possible). That's how I've cleared my UI from the clutter, it takes quite a bit work though but works pretty well if you use keybindings.
Daimon, can you please elaborate how this works, and which quickslot addon you used?