No, the pedal doesn't need to be anything special, you just need the right cable, one that uses pins 1 and 3 instead of pins 4 and 5 on the PBC side.…..or does it have to be a bidirectional pedal if I want to use the PBCs Midi in as midi out?
On your hold function, set it to be an IA button, turn off all checkboxes, except Momentary, which should be on. Then, add a PC action that sends to your device, with the off value = None and on value = Same