I am a long time Line 6 user but just recently have ventured into the world of the 500X (hopefully replacing my aging Xt soon). I recall seeing a video a while back where someone was demoing a feature where the 'volume' pedal was actually lowering the volume as you pressed it towards the toe position. Granted, a limited use case but clever if the thing you turn on with the toe switch doesn't want full volume.
Unfortunately, I don't believe they said HOW they managed that and I can no longer find the video, has anyone managed this by chance?
Second question - with a 2nd expression pedal connected, can things be setup such that you can still use the on-board pedal for switched and unswitched use? If it was volume and wah, the volume transfers to the 2nd pedal and there seems no use for the unswitched on-board.