Locate the source block.
Select "Browser".
Enter the source name and click OK.
Set the URL, width, height, and choose to control audio with OBS (ignore other options).
Click OK.
Find the "Control" block in the lower right corner and click "Settings".
Select "Stream".
Service: Custom...
Server: Refer to the signal transmission documentation.
Stream Key: Refer to the signal transmission documentation.
Click "Settings".
Click "Video".
Recommended Format:
Base (Canvas) Resolution: 1920x1080
Output (Scaled) Resolution: 1920x1080
FPS: 30
Find the "Control" block.
Click "Start Streaming" to begin signal transmission.
Click on the source.
Click "Interact".
Adjust the screen to fullscreen or set the start time.