I have my computer connected to my projector, and was looking for a way to split my computers video output, so i could do computer work on one half of my projector screen and play video files on the other half (like if I had 2 monitors side by side). Does anyone know of software that is capable of doing this? or is there hardware i could use to accomplish this?

My projector only has PIP support, which would overlay a video source over my computer screen, but then I would lose some of my desktop, which is why im looking for seperate hardware/software

thank you
Swytch