Yes, I’m familiar with the Arduino thingie… I was hoping I didn’t have to resort to other ‘devices’.
Another problem is that besides being able to chosing the mode I want (what the encoder does), it has to activate the saved preset (that’s what the switch does).

Darn, it’d be nice if it wasn’t to tricky. I’ll take a lot at it this weekend.

Well, it’s not an easy thing to do.

First, it’s a 4 layer pcb – full of that cool digital wizardry. Then, without a schematic, we aren’t going anywhere.
Hazarai has that JTAG connector which is used to upload the software.
Being it digital, it could be easily programmed to accept an extra footswitch.