From the Navigation panel, click on Administration then click on Roles

Select a Role to be assigned to Staff Member 

Click on button Insert in the Users tab

 A User pop-up window appears from which a user can be searched and selected to be added to the role  

Select a user and click OK to add the user to the role

Click on Permission tab to view permission set associated with the role

Click on button Save

1. Select a user assigned to a role
2. Click on Remove

3. Click on Yes to proceed