CreateNewStreamingLevelForWorld(UWorld& World,TSubclassOf<ULevelStreaming> LevelStreamingClass,bool bUseExternalActors,constFString& DefaultFilename,constTArray<AActor* >* ActorsToMove,UWorld* InTemplateWorld,bool bInUseSaveAs,bool bIsPartitioned,TFunction< void(ULevel*)> InPreSaveLevelOperation,const FTransform& InTransform)