Thanks for the answer, if I may further elaborate:

2: The CC value will be send by other device (probably a MIDI controller pedal), what I meant was — can I send the CC “off the grid” and make 2880 react “on the grid”? If I get the manual right, this is not possible as the only operation which is quantized is starting and stopping recording of the first loop only…?

3: We cannot send MIDI start or stop commands during the song as it would confuse other devices down the MIDI chain, but I am pretty sure we are not losing MIDI clock in the middle of the song, nor changing the tempo… So what should happen when I press PLAY repeatedly during the song (after the loop has been recorder)?

Thanks again, this is highly appreciated!