Mastering the Control Panel in EVS IP Director: Lock EVS to avoid errors.

An EVS operator is not a robot—mistakes happen, especially in live broadcasting. However, some of the most irrational and frustrating errors occur due to accidental actions.

https://www.universityoftelevision.com/post/mastering-the-control-panel-in-evs-ipdirector-lock-evs-to-avoid-errors