Level Streaming / World Comp Question

When using level streaming / world composition, is it possible to re-use and re-position levels around the “master” level? Also, the World Composition documentation doesn’t go over how to manually load / unload the levels - any help on this would be appreciated as well.

Thanks!

Are you using the the WorldComposition tool Screenshot - 6b44fbfb7a2c8b19d080f7b566be13c5 - Gyazo, or just using the level interface?