How to zoom in the camera(for instance using binoculars)?

Hello everyone.

I have been looking(not very thoroughly though) how to zoom in the players camera. I have found a function of the camera called Zoom, but it has to be accessed from a CoreScript according to the Wiki.

I know it is possible: Jailbreak did it with binoculars, many other games probably did it with their guns. But I don't know how. Help would be very appreciated. Thank you very much. (Side note: I haven't tried anything yet in Studio, just hard research right now. Thank you.)