You can assign administrative privileges (such as Administrator, Infrastructure Administrator, or Operational Administrator) to employees either when you first add them to the dashboard or by editing an existing employee's profile.
In both cases, the administrative role is assigned from the employee's profile under the Account > Access Level option.
Check out this article to learn how to add an employee to your Teramind Dashboard.
Check out this article to learn how to change an existing employee's access level (account type/role).
If a user's role is solely for administrative purposes (and monitoring isn't needed), you do not need to install the Teramind Agent on their computer, and they won't consume a license.