Setting up footswitch for onstage playback of samples?

Question:

Setting up footswitch for onstage playback of samples?

I have a laptop, I line6 ax2 amp with midi out and midi in , a ROLAND gi 50, and ableton 6.07. Is it possible to trigger midi samples from my laptop with the line6 channel selector? I also have a gk3 pickupon my guitar and I seem to be able to change the midi banks on ableoton with the line6 channel selector. any suggestions? i don't have an extra finger because I'm singing and playing with a bass player and a drummer. I want to trigger samples while i'm singing and playing of ambient sounds and cool voices.

Best Answer - Chosen by Asker: I would have thought so.