Capturing from a camera view

Hi everyone!

So I have a splitscreen game.

Now i want to create a trailer video and i need some captures for it.

I wanted to make an intro of were you see the players passing by a specific camera placed in the scene capturing
a video from it’s view. So if I were to go in play mode it will not record the splitscreen or see the player camera’s and start capturing from that one camera. So briefly, I need to be able to walk around the characters when it’s recording that specific camera view.

How can i do this?

Thanks in advance,
Tristan