You would need to align the the Program Changes numbers 1:1. PC1 on the H90 will send PC1 out to the drive pedal. There is an ‘offset by 1″ feature now in System Settings, but not a MIDI mapping feature, as such.
I am assuming the drive pedal has a fixed set of receiving Program Changes, but you can arrange a List on the H90 to match that. Not that difficult: Copy / paste your Programs to a User List in H90 Control with the correct order.
