Cashier Supervisor Setup Hierarchy

We are on CS 9.2 Image 13 and my question is whether there is a hierarchy to Cashier Supervisor setup? PeopleBooks describes how to set up a cashier and I understand what it says about how to designate a cashier as a supervisor and how to then indicate the supervisor of an individual cashier. But then, can we set up another cashier to be the supervisor over the first supervisor that will have access to void the receipts of that first supervisor's direct reports? We are attempting to end up with a staff member who can void receipts of all