LumenRT 13 - copy between scenes

Is is possible to copy LumentRT content between different scenes?

I have some trees and characters placed in one scene, and want to reuse them in a new one.

The reason is that i had to expand my terrain model und Lumen does not render the expansion, so I created a new file in microstation, which exports fine.

But now I have to redo all the Lumen stuff...

Lumen RT update 13, exporting from Microstation SS10.