Square for Restaurants, linking table numbers with QR self ordering

[Jmgra]

I am keen on using the self ordering QR system for customers to order drinks from the table,  but not food.  How do I link the table numbers in QR setup to the table numbers in Square for Restaurants?  This would allow customers to pay 1 bill at the end for both items ordered via a waiter and via the QR code.

[GrayzaCafe]

As far as i'm aware Customers aren't able to actively add to a 'ticket' via a QR. If you use the QR ordering system, payment is required at the end in order to finish the transaction and progress the sale to the POS. 

[Jmgra]

Thanks,  this would be too frustrating for clients having to pay 2 bills.  A shame as was thinking it would be a great way to help with staff shortages.  Oh well.