To change user roles and assignments:
On the Roles tab, select roles from the Available list to assign to the user. Use the arrows to move roles to the Selected list.
On the Node Access Groups tab, select groups from the Available list to assign to the user. Use the arrows to move the groups to the Selected list.
On the Property Categories tab. select categories from the Available list to assign to the user. Use the arrows to move the categories to the Selected list.