Giving discounts to the whole bill is allowed in our system through hotkey on page payment, for more details please refer to the article “How to give discounts for the whole bill”.
This article is about how to edit data of quick discount and quick flat discount.
Firstly, go to “setting” page and select “Payment”.
Secondly, click “discount” button in the list on the left.
Finally, edit datas of these two types of discount and save.