Boss VF-1 Effect Processor

A quick (ha-ha) question  - do I need the MIDI Implentation Chart for 
the VF-1 when programming the presets on the FCB? I am having a hard 
time getting my expression pedals to work. I have contacted Behringer 
tech support and they've sent me the step by step procedure for 
programming the exp.pedals. I want to program exp pedal A for volume 
and B for effects (wah, etc.). I get through all the step, but when I 
have to enter in a preset value for either volume or wah from the VF-
1 I hit the roadblock.

Carmelo