Press the “MENU” button to open the LCD settings menu.

In the upstream key settings, select the “Luma” key type.

Select “Fill Source” and choose the corresponding input source.

Select “Key Source” and choose the corresponding input source.

Press “KEY 1 CUT” on the switcher, then press the input source channel of “Key Source”. Then press “KEY 1 FILL”, and then press the input source channel of “Fill Source”.

Effect after the final setup is completed