I'm new to this MIDI thing, so I have a rather basic question… I'm waiting for my Egnater Mod50 guitar amplifier head right now, this amp has a parallell loop where I would like to have the Timefactor and just place it on top of the amp. There is a 6-button MIDI footswitch available for the Egnater amps, and the head itself only uses the 4 first buttons. Can I use the two extra buttons (sending PC5 and PC6) to move up and down in the Timefactor's presets?