We are currently using it in the following way.
Server (server) with 2 terminals for customer walk in sales with the number sequence 1,2,3 etc.
Delivery (another server) with 1 terminal and two tablets for delivery orders with the number sequence D1,D2,D3 etc.
We are not using the Dine in/Reservation part of it as customers pay and sit if they wish or consume at home.
Terminals are just pulling from the servers information at the moment.(reason being when I changed printer on terminal then it changed it on the server and then I followed what Shivan advised to call all usb printers server as I thought ticket tag numbers could not be changed for terminals)