Multiple light mass and levels streaming

Hello,

At the moment I have one scene where in some instances I have boxes in the middle of the room and other I don’t.
However, I need to build the lighting and as I have the boxes on a different level streaming they are not casting shadows on other levels items, I was wondering if there was a way to avoid copying the whole map just for the lighting and few objects.

I already looked into lighting scenario, but it is always used only for identical maps with different lightings.

I hope I made myself clear, if not please ask anything.

Many thanks,

Davide :slight_smile: