Ok, did some tests, it's a bit tricky but I managed to do something stable enough I guess.
You can find a module in the online library called (s6) sendMidiOnLoop
You'll need to open the module editor to change the midi message. It's this line you need to edit:
Code: Select all
modul8.sendMidi(0, 1, 'CONTROL_CHANGE', 3, 127)