Hello.  I have a Marshall Code 100 Head, 4 12 cabinet and the 2 12 combo amp.  Absulutely love these amps.  I also have the 3 way footswitch.  What I can't figure out, is how to be able to turn off and on the REVERB from the foot pedal.  Is there a way for this?  It defaults to allow you to access the Distortion, Modulation and Delay but what about the reverb?  Any ideas?

Thanks, Larry