Open more than one level at the same time

Is there any way to open two or three levels at the same time in the editor?
i mean for example i want to copy some things from one map to another, and i don’t want to open the first then open the second to paste it, then open the first again to copy some things missed you forgot to copy it then open the second again. this would take very long specially if the level is very big :\

and the two level or more every one of them would be open in a sub window like the content browser …

any one know any way could help?!

and thanks in advance :slight_smile:

The way i do this is to either copy from project to project (through migration of assets), or when using World Composition, to load a level and then assign actors to the current active level (map).

Sometimes i copy through Windows Explorer the uassets directly.