Mailist to discuss all issues regarding the Digitech GSP-2101 Guitar FX Processor

I would like to know how i can turn effects on and off like stomp 
boxes with my gsp 2101 version 1.06.06 and my art x-15 ultrafoot.

When i push the mode button on my x-15 and then push the buttons 
nothing happens....all i can figure out is up to 4 parameters with 
the 2 foot controller pedals and bank and patch changes. I really 
need to be able to assign 2-3 fx to one switch so i can go from a dry 
distortion sound to a wet clean sound within a given patch...btw 
switching patches isn't an option because i need to go to distortion 
and back to clean instantaneously any suggestions?

Thanks

Aaron