I have an Engl ironball which uses a TRS jack connected to a twin footswitch. Tip to ground selects the lead channel, ring to ground selects the gain boost, both does both, and neither does neither.
The Helix which appears to give me the option of tip-ground, ring-ground or both states but not both states off, so I can select any of the functions, but I cant set a command to set tip or ring to off to revert to just the clean channel without the gain boost, any ideas?