static void AppendSkeletalMesh ( const [USkeletalMesh](API\Runtime\Engine\Engine\USkeletalMesh) * SkeletalMesh, const [USkeletalMeshComponent](API\Runtime\Engine\Components\USkeletalMeshComponent) * SkeletalMeshComponent, const FTransform & SkeletalMeshTransform, [UGeometryCollection](API\Runtime\GeometryCollectionEngine\GeometryCollection\UGeometryCollection) * GeometryCollection, bool ReindexMaterials )