Yeah, I was thinking that as well (wasn’t sure if it was indoor or outdoor scene).
Another option might be to look into level streaming through the new World Composition tool, I would need someone else to confirm if this is possible, but you may be able to create 2 levels side by side, but have the world browser not render the level to the player. The reason I didn’t bring this up before is I am unsure whether you could set the level as “do not render” but only have that affect the players camera, and have the other cameras set to view only the camera level.
I don’t think it will work as I stated out of the box, but there may be a way to customize this for your idea (if you are using C++ I am sure it is possible, not sure using blueprints). I don’t think this would work initially simply because not rendering it, will not render to any camera period. However there may be a setting I am unaware of, so I thought I would post this in case anyone else knows the answer. For more info on the new level tool see here:
Maybe that would be a way to go if you can get it working.