LS Retail - Coupon

Appreciate it if anyone could advise if it is possible to set up a pos button to tag to a Coupon code.

The coupon is setup as tender type with discount amount of $15. Currently the user has to manually enter the the coupon code using numpad, but we would like to eliminate this step and directly send the coupon code to the system.


Currently discounts by coupons functionality is not around for this : create infocode for the user to input the coupon number/details attach the infocode to discount button.Note that there is no validation on infocode number/details.