I watched this video last night and found it a neat way to loop on the fly that seems to work really well. I’d never thought about using pattern changes w/ one-shot recorder trigs to trigger recording. The setup this person uses takes all 4 inputs and routes them to 4 outputs (Main L/R and Cue L/R) using hard panning. So mono in/mono out but it looks like a pretty smooth workflow. For handsfree looping, you’d need a pedal that can send multiple MIDI CCs at a time as he’s arming all recorder trigs before the PC message gets sent: