I'd like to cumulate discounts on my prestshop.
For exemple, I have a quantity discount of 20% starts from 5 pieces bought and another discount of 25% on all products who has to be cumulated with the first one.
Now, 25% is apply with less than 5 pieces and 20% with more than 5 pieces. I'd like to apply 45% if the quantity is more than 5 pieces.
So, I have to cumulate a custom discount (not a cart rule) with a quantity discount.
I don't know how to do that. Maybe it's possible to do it from the administration panel?
Thank you.