User management is done through System–Users menu. Only admins can access this menu.
Please keep the following points in mind:
New users are added by clicking the Add User button.
Existing users can be edited by clicking the login name which will open the edit user screen as show below.
Access control: You can enable or disable menu options on the add/change users screen. Un-checking a menu option will hide it from that user's login.
Users with role admin can access this user management screen.
Users with role user are restricted to their default departments.