@cyberic: Ok, then an idea is to translate the note to song position in midicloro. A CC message can be put at the start of each row which will make midicloro send a new song position message incremented by 1. On the first row of each block, another CC is used to reset the position back to the note value again to handle looping.
This means you have to start the sequencer at the first row of your blocks.
Would this work for your use case?
Currently I want to focus on getting the GB link port communication with the GPIO port working, and I also have some other ideas for the chord settings. So I can't really say when this function might be available.
@unexpectedbow: Thanks!