Loop roll midi commands

Evening all

Recently moved over to RB, having a look around and was wondering if RB has a loop roll feature, looking to midi map this to my xp1 or my z2 mixer.

For the life of me i can't seem to find the loop roll feature,Is t only available on certain controllers and the S9. i know i could use slicer but its not really the same.. would love the loop roll feature so that i can momemterily loop and stutter parts of the track.

If anyone could point me in the right direction it would be appreciated.

ave searched the midi option and commands but failed to find the loop roll section that would allow me to midi map them.

Thanks