New to boxing only last night actually started to play three boxed

I have a prot pally i tank alot on as my main and have 2 warlocks i box with (1st warlock was my main, 2nd is a freshly dinged lock). When I pvp my lock is the main toon and have the pally + the other lock as the clones. I will respec my tank to a "shockadin" for when I run bg's /arena. Now I setupp thh pally's ui purely for multi-boxing and complementary spells to the lock.

Obviously now when I go to play my pally as a tank (different wow install and ui) all his bindings will be completly different. How should I handle this as it would be ideal to keep the shockadin/box ui and bindings as they are? I was thinking that for my tanking Ui I would use bongos action bars that are beyond the boxing ui eg action bars 10+ I would still have to rebind each time I load the different ui though wouldn't I? i dont want to tank as a "clicker" and have become very comfortable with my tank bindings.

Is there a way to save keybindings for different Ui setups as a Load on demand style?????