chunduus

I have an external midi pedal, Harley Benton MP-500. The menu and configurations are pretty limited and I'm almost certain that the default firmware can only send values 0 & 64. This works fine fore effects but with any of the splits the first value chooses L or A but the second value of 64 only sets the balance to almost center (R1 or B1). How can I get the 64 value to et the balance to R100 or B100?