Open the Change User notebook

1. From the Control Center window, expand the object tree until you find the User and Group Objects folder below the database that contains the tables on which you want to grant or revoke privileges .

2. Click on this folder. The DB Users folder appears.

3. Click on the DB Users folder. The Contents pane displays icons representing the users who are authorized to use the database.

4. Click mouse button 2 on the icon that represents the user whose table privileges you want to change. Then select Change from the pop-up menu. The Change User notebook opens.