Not certain what you are desiring, here. BUT, if it is simply showing one of your video streams onto a connected projector, create a separate form and put that video control on it as well. Then, when you want to present it on the projector, use the projector as a second monitor. (Extend your computer display, leaving your main form on your computer screen, and placing the second form on the second screen (which is your monitor)). You can then see it in both places. I don't do video streams, but I use an 'audience form' all the time. There is simple code to place in a button/menu to move that second form to the second screen and even maximize it.

Is that what you are looking for?

Sam