Hi
thank you my friend you always help me with fast respond
I try to add discount in "Discount amount" but if the "Use cash discount" normal no thing change in payment amount and still discount amount zero (and only the first filed can be enter numbers)
If I change use cash discount to always I get the two filed open as your picture and enter discount amount then close it
the payment amount will be minus the discount but not show in lines as I request in object