configuring discount coupon for several products

-- HikaShop version -- : 2.2.3
-- Joomla version -- : 2.5
How can i create a 10% discount coupon for 2 products in a category? I don't want it for all the products in it.
i can only select one product per coupon and not several products from a category.

Hi,
A solution can be to :
- Create an unpublished category
- Add your 2 product to this category through the "category" tab of your products configuration page
- Use that category for your coupon.