DT Midi trigger for External Looper?

Basically, I’m using a digitakt and would like to have MIDI A send a CC (or note) message to my looper to start recording, lets say after a 16 measure intro, record for 4 measures, and then not trigger that “note” again.

Is this possible? I know there is “1st” and “!nei” types of conditions, but even if I use 8:8 then it doesn’t re-trigger to stop the loop (end recording and begin playback) until 8 more bars, which is longer than I want to live-play into the looper. There must be a way around this; what am I missing?