Using a camera set in another level

Hi there !
Is there a way to use a camera (set its location/rotation, display the view) who is set in another level ?
My player is in a level, and using a tool he could see what he would see in another level (to look at a second room setup per example). Like a portal to see through.

Thanks a lot for your advices !

Yet another question I’d love to have had answered, yet no responses in over 3 years.

Load a streaming level away from the player and use a render target? Essentially look at any portal tutorial for UE4 on YT.

Quite expensive, but it should work. Honestly I lost track why I posted this… Thanks for the advice, though ! @VE1977, does it help you ?