Latch modes are really used for 2 very different things:
latching behavior
whether the sequencer should play when no notes are held
But these are 2 separate purposes and actually belong in very different places.
"play sequencer when idle" should be a toggle in the sequencer GUI. it should default ON.
Latching behavior (Off, pedal, auto) should default to auto, and be specified by the instrument that's sidechained. If you're sidechained to piano, then it's the piano player that should specify latching behavior. So on the sequencer gui, it can be a dropdown but it should take the value from teh sidechained instrument. And because the sidechained player doesn't have the sequencer gui up for this sequence, their latching behavior can be specified somewhere outside the seq gui, like in the settings menu.
Latch modes are really used for 2 very different things:
But these are 2 separate purposes and actually belong in very different places.