Quantity discounts across different products

[poblet]

Hello,

I'm a complete newbie, so please bear with me. I am VERY happy to have got this far, with lots of help from forum posts, FAQs & wiki - thanks everyone for the information there!

I am developing a very simple shop, where I am currently selling only 5 products. The products are similar, so I have listed them in 1 category. I have left my options open with regard to adding different categories and/or products at a later date. I have set up quantity discounts such that if any 1 of any product is placed in the cart, it costs £5.00, 2 products the same are £4.50 each, 3 or more products the same are £4.00 each. So far so good. But... I want the same quantity discount to apply for any combination of products, so that 1x product A + 1x product B + 1x product C in the cart, are all charged at £4.00 each. I have no idea where to start with this, and haven't brought up the answer in any searches.

Please help (in simple steps if possible)!

Thanks.

P.S. if this post is in the wrong section, please let me know how to move it to the right place.

[poblet]

Thanks but I think I found the answer: Quantity discount contribution. It seems I wasn't using the right search terms.

That's Newbies for you!