We recently had to switch to a new helpdesk due to a merger, but we want to keep the ServiceDesk around for archival purposes. We removed all the techs, except the default administator and my AD-linked account. I am still an Admin, but with the Free license you can only have one Admin. Thats fine, I just want to switch the admin from my account to the generic Admin one. However, I can't seem to add a login to the default Administrator account.

Is it possible to switch this?