[AActor](API\Runtime\Engine\GameFramework\AActor) * JoinStaticMeshActors ( const [TArray](API\Runtime\Core\Containers\TArray)< class [AStaticMeshActor](API\Runtime\Engine\Engine\AStaticMeshActor) * > & ActorsToJoin, const [FJoinStaticMeshActorsOptions](API\Editor\StaticMeshEditor\FJoinStaticMeshActorsOptions) & JoinOptions )