Need help setting up ZED AR/MR Plugin: Full screen

I want to see the Game window as a full screen, not the one maximizing, when I play it. Is there any way to do so without coding? If there’s not, where do I put the script?

I tried “Build & Run” without the Zed, and it worked. However, it didn’t work whenever I plugged in the Zed and used the Zed Rig Stereo. It keeps showing only the skybox, not the objects on the scene. I also tried to add the tag as “main camera” for the Zed Rig Stereo and the other two cameras attached to the left and the right camera independently, but it didn’t work as well. Does anyone know how to fix this?

Click “File → Build & Run” or use hotkey Ctrl+B