To change the role assigned to a user:
- Select Users from the sidebar. 
- Locate the user whose role you want to change and click the checkbox at the left side of the row. (You can select multiple users by clicking their checkboxes.) 
- Click Change Role. 
- In the dialog that displays, select the new role from the dropdown list. 
- Click Change Role to assign the selected role to the user or users selected in step 2. - For more information, see About Roles.