[FPCGAttributePropertyOutputSelector](API\Plugins\PCG\Metadata\FPCGAttributePropertyOutputSelec-) CopyAndFixSource ( const [FPCGAttributePropertyInputSelector](API\Plugins\PCG\Metadata\FPCGAttributePropertyInputSelect-) * InSourceSelector, const [UPCGData](API\Plugins\PCG\UPCGData) * InOptionalData ) const