In DAW Preferences is listed BSP and BSP out editor.Which I have to activate?

Hi to all, I use Ableton Live 10 and when in the Midi Preferences Input and output there is listed “arturia Beat Step Pro” and “Beat Step pro OutEditor”
Can you tell me which I have to activate for the Input and for the output and what is it about? Whats the difference?
Thank you for any advice.
Kind regards

I thought the Out is the separate MCU midi port for Mackie control.

It would be nice if that one could be disabled at the BSP, as it causes this kind of confusion. And, some 3rd part hardware has problems with too many midi ports (for instance some iConnectivity usb midi hubs).