r_overrideDXGIFullScreenOutput
DUMPTODISK

Defines the preferred monitor for fullscreen display.
Defines the preferred output device for fullscreen display, which can be different from the windowed display device.
Usage: r_PreferredMonitor [0=Main Display Window (default)/(1-n) Monitor index]OBS: the output device must be attached to the selected video card. (see r_overrideDXGIAdapter and r_overrideDXGIOutput)
OBS2: many video cards support up to 2 devices connected, which would make the maximum index be 1.
Usage: r_overrideDXGIFullScreenOutput [0=main display output (default)/(1-n)=display index]