Manage Multiple licenses from a single account

Hello,

Currently, I have control over 2 licenses (company and university), but I have noticed something annoying. A third license may come under my control and from another account.

All licenses are attached to different email addresses (users).

- Is there a way to link several licenses to a single super-user? - Is there a way to link all emails accounts of the licenses to a single user? Already tried with no success, because if I try adding an email with a valid account to another user account it can not be added.

Best regards