[quote="=FFW=>>"]alright, solution found:

midi tracks 1-4 were set to send midi over channel 1-4.
now they send from channel 9-12.

but, the question about over which channel the send request
should be transmitted holds…[/quote]
I would expect (I’m just guessing) that you should use the channel number that you assigned to the OT track whose information you want.

Why not try it and see what happens?