If you want to add a single user you can do so from the admin control panel: click on Add Single User:
You will be presented with the Registration Screen; which if activated is also the same registration box you will find on your home landing page for self registration (as below).
Simply fill in the details on behalf of your new user, select a User ID and Password. The Location or Locations will display when you select one from the drop down, this will then display the active departments in that location. Click Save when you are done.
Be sure to share the USER ID and Password with that user. You can if you wish use the same password for each user, however, each user must have their own unique USER ID and email address (if you have set the email field as mandatory in the General Settings Tab.
No users can have the same USER ID or Email addresses.