We use LoyVerse for retail POS and would like to be able to set up multibuy discounts to be added to the cart automatically.
You add 4 books, doesn't matter which products with that tag, the system sees that and adds a 50p discount. If you add another 8 books to the cart it will add the 50p discount again.
We tried setting a modifier, but it adds so much time to each sale with those products. And discounts can only be added once, fine for 4 books but useless when we try to sell 8 or higher.