You can add users to Enterprise Tester through the Admin section which can be accessed via the Admin tab. The number of users you can add to Enterprise Tester depends on your license level.
Groups allow you to create predefined security profiles for users within an organization. This is a fast and efficient way of managing users’ permissions. By assigning a user to a group, they will then be granted the permission that the group has been assigned.
You can also make a user a member of several groups in which case they will be granted the combined permissions assigned to the groups.
You must have the “Manage User and Group Security” permission to manage users and groups.