It’d be great to have a midi message to lock/unlock the screen. The locking feature is great, but for midi users who want full automation, screen locking automation would be really helpful. You can make any changes you need during soundcheck, and then when the show starts, screen can be set to lock via midi message. No rogue screen presses or accidental knocks and bumps during the show! (and you don’t have to remember to lock/unlock manually)
There are similar existing Feature Requests to have the ability to lock the screen independently from the Master Volume which would be a per-requisite for your request: