I uploaded a couple of custom actions that I've come up with for looping and live performance. One lets you record a part and then kick it to another track, and the other lets you toggle between instrument input tracks and bypass FX on unused tracks to avoid bogging down the CPU.
I'm looking forward to hearing back from Reaperites who are into live performance and have some tricks to share.
https://stash.reaper.fm/v/34976/Rec-...e%20action.INI
https://stash.reaper.fm/v/34974/Cycl...ypass%20fx.INI