Discount on products same category

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Hi,

Is it possible to use discounts for articles with the same category?

For example: 3 products get a discount if the products ordered are within the same category.

Kind regards,

Winfried Buijen

It works, but not entirely.

I have several kinds of coupons.
1. When the total amount before shipment is over € 35,- a coupon should be active for no costs for shipping. Coupon value € 4,50
2. When there are 3 or more products sold within the category 'kleine readers' there should be a discount of € 2,-
3. When there are 7 or more products sold within the category 'kleine readers' there should be a discount of € 8,-
4. When there are 5 or more products sold within the category 'astro-agenda' there should be a discount of 20%
5. When there are 10 or more products sold within the category 'astro-agenda' there should be a discount of 40%

All of the above rules are applied correctly but only when when one of them is true or when 2+3 or 4+5 are true.
On all other combinations of above coupons, the coupons are not shown in trhe card, only one is.

Is there something I can do about this?