New Coupon restriction

-- HikaShop version -- : 2.6.3
-- Joomla version -- : 3.5.1
-- PHP version -- : 7

Hi Hikashopteam,

Some shops may not give a discount on their website when ordering larger quantities of one product.
So they like to give away a (personal) coupon.

But there is no restriction for that situation!

For example: We would like to have a coupon for a minimum amount of one product
All other products in the cart can't have this discount only if they have the desired minimum amount.

So only if you buy more then XXX from one product then you will get the discount only for that product.

See example: