I bought a Line 6 FBV Shortboard MKII off of Reverb last year. i haven't messed with it too much. I have a cheap expression pedal laying around. I noticed the plug fits the back of my Line 6 pedalboard. Is it possible for a non Line 6 expression pedal to work as a secondary expression pedal? I have downloaded the software, but haven't really had the time to understand it yet. Any help is greatly appreciated.