I downloaded a custom tone called: "AT - Cry For You" . It sounds great, but was a little quieter than my other tones, so I was increased the volume and saved... it saved for 10 seconds and then went back to the original volume. So I went into HD500 Edit and selected the AMPS button. Above the volume knob it shows "EXP-1", so it is assigned to the volume pedal. How do I "un-assign" it so I can edit the volume to my other tones?
On HD Edit go to "controllers" tab and find the amp on the "model" drop down menu. Once you have the amp selected, all other drop down menus will display information relevant to that amp.
Select Ch. Vol on the "parameter" menu, and then select OFF in controller menu.
That should do it