BetterDisplay will do this for you and it works on my M2 MacBook Pro. https://github.com/waydabber/BetterDispl... So now I can turn the internal MacBook Pro display off and I'm still able to use the MacBook Pro's internal keyboard and trackpad and fingerprint reader (just like I'm used to using). Also, I can use the two external displays which are up higher (and not miss something popping up down there). Besides, when it's open to use, it's a little hard to see over the 16" internal display and fully see the bottom of the external display behind it (which is in a hutch and can't be raised). It's easy as flicking a switch in the menu. on/off display switch. It seems to be completely off, as it doesn't show up in the display control panel any more. control panel showing it is disabled. This is great as I didn't want to be mirroring displays, and messing with brightness or other cheats I've seen online.