Change between Pimax Mode and Direct Mode via "Special Command Line"

What is the command to go from Direct Mode -> Pimax Mode (and vice versa) via the “special command line?”

Hi, new Piplay version1.2.53 has Pimax mode and video mode only, direct mode would not existed.

I didn’t ask how to change the option in the graphical user interface.

I am talking about sending commands directly to the headset via the “Special Command Line”