i've done it before so i know it's possible but i can't seem to get it to work now. i have everything hooked up the same way i believe..i'm trying to use the FS switches to control effects (delay, reverbs, etc) through mainstage. however, i can't get mainstage to recognize any of the switches when i press them. i'm using the learn function which should work but no such luck. the midi interface i'm using is a focusrite saffire with firewire. if anyone could help, i would appreciate it. thanks.