Q. Is there a way to add users, force them to log in and control their access to the software via privileges?

A. Yes. Hit the User(person) button in the button group at the top right (list interface) or bottom right (physical interface). Login as Administrator using the password provided in the documentation. Check the New User checkbox and type in their username and temporary password. If you already have privilege groups created, select the desired group and hit the Assign button. If not, select the privileges you wish to remove from the new user and hit the remove button. Check the login required button in order to force users to login and you are done.