Expiring links - exception


I have NC 20.0.10. connected to LDAP. The system is set up so that users cannot store data for more than 30 days. Each generated link to the resource will also automatically expire after 14 days. I have one local account that I can’t auto delete data from, but I can handle it. The problem is the global link expiration setting. Is it possible to create an exception so that for this local user his links do not expire or that he is the only one to change the link validity?