1.Select the File - Users menu. As this application does not have any registered user, click OK on the dialog box shown on the next figure to create an administrator user.

Application without an administrator

2.Select the Users item and create two more users. Be careful with uppercase and lowercase characters.

Add User window

3.Select the Groups item and create two groups of users, named "Administrators" and "Operators".

Add Group window

4.Configure one user to belong to the Administrators group and two users to belong to the Operators group.