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?
I found that this can be done via a very similar process to the way you program patches to the 3 stomp switches. Make sure the pedal is in switch mode, not patch mode - press and hold the effect you want on the amplifier's front panel, then press down on the footswitch button you want to program the effect to - 1, 2 or 3. In my case I programmed the pre-fx to switch 1, MOD to switch 2 and REVERB to switch 3. Didn't need the delay as I have it in my loop.
I realize this shouldn't have been a big issue, as I've had the amplifier for more than a year, but I honestly never touch the front of the amplifier, except to turn it on or change the volume. I use the phone app and most of my effects are in my loop chain. It just never dawned on me to program the FX just like I do the patches.
Oh well, lesson learned.
Hope this will be able to help someone else who had the same question.