Yep. With REC/FLEX, possible to overdub, to disable timestretch, add plocks, no tempo change…
As Pickups came after an update, they should be the hack, no ?
OT coming from MD UW, I think Rec/Flex is the normal way. But yes it feels hacky compared to a regular looper.
Main problem with REC/FLEX : starting the loop just after the end of the recording if you want different lengths.
That needs a sort of midi hack.
Doable with a midi device sending 2 messages, or adding a midi processor. Doable with midi plays free tracks and midi loopback.