I only replied as nobody else seemed to do it.
I think the question is if Reaper react to punch point messages from a controller. I don't use Reaper.
Keylabs Reaper preset mapping is different from other Keylab DAW maps, as they are set to control punch in/ out. My guess is, that it's not possible to control punch settings from a controller, unless it's added not long ago, as it otherwise would be mapped for keylabs Reaper preset from the beginning.
Reaper have auto punch for time settings and selected items. But i can't see the limits can be set from a controller. I suggest you ask in Reaper forum/ support about this. You can also search the web.
If you use Keylabs MCU or Reaper DAW will change the functionality to the chosen map, if the DAW also use the functionality.
You can also ask Arturia support/ sale.