FPackedLevelActorBuilder

[FPackedLevelActorBuilder](API\Runtime\Engine\PackedLevelActor\FPackedLevelActorBuilder) handles packing of [ALevelInstance](API\Runtime\Engine\LevelInstance\ALevelInstance) actors into [APackedLevelActor](API\Runtime\Engine\PackedLevelActor\APackedLevelActor) actors and Blueprints.