Many restaurants add tender/payment buttons for gift certificates and for Groupon Discounts. Often these tender types only pay for a portion of an open order, but an employee taps the tender button before splitting. Many other systems will pop up with an "amount" window after hitting a payment button. This protects from the common error of marking the whole order as paid by gift certificate when the employee only meant to pay for part of the order. It would be great to have this option in Clover.