Found this on the forums;
http://eqiiforums.station.sony.com/e...essage.id=1779
1. pick a file location. Something simple like the root of C:\ will save you keystrokes.
2. Set your hotkeys up the way you want them for normal play.
3. type the following in the chat window to save your keyset /savehotkeys c:\normal.dat
4. set up blank hotbars and type /savehotkeys c:\mentor.dat
5. to switch back and forth, simply type /loadhotkeys c:\normal.dat or /loadhotkeys c:\mentor.dat and viola, you are done. No fuss, no muss.
You can name the file what ever you want, and save it where ever you like. I used the above as an example for simplicity.
Edited to add: You will not get a success or failure message when saving your keysets. You will know that it worked when you load the various keysets saved.
A friend reminded me that you can also set this up as a macro command so that you simply have to click a button to switch hotbars.