You must have Sites enabled on your account before you can assign Site users and overwrite their defaults.Â
- Ensure you are in the Manage Organization view of your Sonar portal. Â
- Click the Users tab.Â
- Find and select a user, or to add a new user, click Add New.        
 The first subtab is Profile Information.
- Change the drop-down for Overwrite with Site Defaults to either yes or no.        