Users and User Groups can be defined in the QPR User Management Client.
User groups are especially useful tools when administering the users of the system. User groups allow you to easily set licenses and product rights for many users at once. Therefore you can grant licenses and product rights to one group that contains hundreds of users, rather than assigning the product rights and licenses to each of the users individually.
See the QPR User Management System User's Guide for more information about adding, modifying, and deleting users and user groups.