Dual spec
 

I'm not sure if there's a feature for this.

I would like to be able to use two completely different set up's for one toon without feeling like I have to create two separate desktop setup's. One would be for my prot spec, the other for my healing spec.

If there's a way to already set this up via the desktop's, I have no idea how. For instance- and this drives me buggers- when I join a party the UI auto changes (I eventually figured out how to fix that from happening). I would like to be able to have it do that depending on the spec I'm in, as opposed to group size (I don't know about some of you but I use my solo desktop on my main healer for every situation).

Upon actually using the search feature, I see there is a way to do this exact thing.