RESET: Press 6 times to restore the factory default, the resolution is
1080P.
RES3: Press this button, the screen's frame will appear red, and you can
select IN1-4 to change to the input source screen.
ROT1: The signal 1 picture can be rotated into 90/180/270 degrees
under the full screen, under the split screen, the signal 1 screen is
rotated 180 degrees.
ROT2: The signal 2 screen can be rotated into 90/180/270 degrees under
the full screen, under the split screen, the signal 2 screen is rotated 180
degrees.
ROT3: The signal 3 picture can be rotated into 90/180/270 degrees
under the full screen, under the split screen, the signal 3 screen rotates
180 degrees.
ROT4: The signal 4 picture can be rotated into 90/180/270 degrees
under the full screen, under the split screen, the signal 4 screen is
rotated 180 degrees.
MODE: Select the split screen mode.
AUDIO: switch the audio source.
RES: switch output resolution 720P 1080P 4K30Hz 4K60Hz.
IN1: Select the source 1 screen in the full screen, and the split screen will
change to the source 1 screen.
IN2: Select the source 2 screen in the full screen, and the split screen will
change to the source 2 screen.
IN3: Select the source 3 screen in the full screen, and the split screen will
change to the source 3 screen.
IN4: Select the source 4 screen in the full screen, and the split screen will
change to the source 4 screen.
QUAD: Switch to Quad-view
SAVE: Press this button + optional IN1-4 to save the scene.
RECALL: Press this button + optional IN1-4 to recall the scene.
Other buttons are useless here