Set your happy hours!
1) In the Vento administration - Settings -> price levels
2) Add a new item and set the required parameters
Name - the name of the item
Outlet - at which outlet the price level will be used
Time specification - you can select only some days of the week, or just two hours a day
Modification recipe price - discount from portion price (by how many percent will you prefer the offer?), or use the price of the calculation (select the base selling price, or the price 1, 2, etc. you set them directly in the recipe)
Recipe categories - select the category for which the price level will be used
3) Sell the recipe as usual - when sending, the price level is applied and you can already see the adjusted price on the account