It is almost definitely possible. I don't have time to look up how and test it now.
Please, please stop bumping. It's getting annoying. At the very least, wait until it's no longer visible on the first page if you feel the need to bump... it's not like this is a very active forum where posts get lost (if you NEVER bumped, this would still be on the first page still!).
If you want it now, and can't wait patiently (you won't get the command until this weekend at the very earliest if it's from me), look here:
http://vboards.stratics.com/showthread.php?t=149410
In the first post of that thread, you'll see a whole bunch of examples on how to create a command to change settings. Look in the Lua for the SettingsWindow and figure out what the correct variables for yourself, using the other setting changing commands as a guide.