[EMetaDataRegistrySourceAssetUsage](API\Plugins\DataRegistry\EMetaDataRegistrySourceAssetUsag-) & operator&= ( [EMetaDataRegistrySourceAssetUsage](API\Plugins\DataRegistry\EMetaDataRegistrySourceAssetUsag-) & Lhs, [EMetaDataRegistrySourceAssetUsage](API\Plugins\DataRegistry\EMetaDataRegistrySourceAssetUsag-) Rhs )