Ability to add or remove items after a split payment.
When customers are paying individually, the cashier can no longer edit a ticket once one customer has paid their bill. If the second customer wants to add an item or was unhappy with his meal, it is too late to do anything because the ticket is locked on the payment screen. To add, we have to create a new ticket, making the customer pay twice (which most are unhappy about). To delete, we have to act like the customer paid, then issue a refund. I should be able to discount the food or void it. Again, this only happens when the bill is split, and one customer has already paid his bill.
Jennifer Kavanagh commented
Or if other customers in the group would like to keep drinking I can't add anything to the tab once I've closed out one member of the party.