Creation of Head Cashier

I want a central cash collection point(HEAD CASHIER) for all departments, we have 3 departments Restaurant , Bar and Annex. All bills should be cashed out in one respective point, The reason why we choose to have three departments is because of reports and warehouses. Each respective department receives items from the main warehouse.
Now I want to create a central cash collection point, the head cashier will settle all bills and collect cash.
How do I create the head cashier screen to allow him to view all the tickets posted from any department and settle when he receives the cash

He will need to press the department button to access tickets from that department.