How to apply client-certificate credential to be used for authenticated scans

Good day.

I’ve noticed that section on credential usage for authenticated scans mentions that the credential needs to be linked to a target to be used by the nvts during the scan.

I have multiple targets behind a tls client certificate, and I have created the corresponding credential in gsa. Unfortunately, I cannot find a way to link it to my target - credentials for authenticated checks only include: (ssh, smb, esxi, snmp)

If anyone has experience running authenticated scans against targets behind client-cert checks, please advise.