Is it possible to perform custom attribute mapping when syncing user attributes using SAML2 authentication? I know we can map external attributes to first_name, last_name, etc. But we have a need to set first_name to a nickname attribute if it exists or has a value and if not fallback to the firstname attribute. The configuration doesn't allow us to map two external attributes to the same SOAR user attribute. Wasn't sure if there was a way to script this somewhere or if we are stuck performing this mapping on the IdP?