I know this has been requested numerous times to SOE, but so far we've not heard anything regarding this option.
What I'd like to see, is the ability to use 'spell sets' (like we had in EQLive!). The ability to mentor has introduced a problem with trying to remember what spells can be used at what levels, etc.....
So, would this even be possible to do? The idea would be a window (similar to Kosmo's options window that let's you select multiple display configurations at the click of a button) that let's you do the same thing, only it will change what spells are loaded in your hotbars.
Having 10 hotbars available, with 12 slots available on each, may sound like a lot....but for some of us (casters especially), it definitely isn't. As a Fury, I have 4 dedicated hotbars that I actively use just for current spells. Then I've got another 5 that are reserved for tradeskill abilities.
I figure, if it's possible....someone here must be able to figure it out and come up with something