It appears to me that assigning a softkey to Function=Mute/Channel=FX1(2, 3 or 4), when that FX is in mode Inserted, the softkey does nothing. On the other hand, assigning a softkey to Function=Mute/Channel=All FX does work, regardless if FX is inserted (toggles IN/OUT ) or shared (toggles MUTE ). That is inconsistent so I think this could be thought of as a bug.
In my opinion: If FX1 is Inserted, Function=Mute/Channel=FX1 should toggle IN/OUT.
My real problem is that I want to turn on/off Inserted FX using MIDI. Because of the above it can’t be done. All failing options:
Sending MIDI to mute FX1 does nothing (as per described)
Sending MIDI to mute all FX does not exist (reason suggests this might have worked)
Sending MIDI to push a softkey that was assigned to mute all FX is the best option but does not allow absolute control, since every message is a new softkey push. Hence the sender must now current status of the softkey first.
Thanks! But see my own reply where I describe why that is only a poor workaround. Plus once you really only want to change say FX1 (not all) it is obviously not good enough.