Load Level Instance ~ Create Multiple Transformed Instances of the Same Level, not in levels list!

[Gravenface]

@anonymous_user_41de0c71

But, can somebody please make another one to unload this levels?

You can use UGameplayStatics::UnloadStreamLevel node from this doc:

Loading and Unloading Levels using C++

All you have to do is pass level name. I guess you can use
ULevelStreamingDynamic::GetFName() as level name.