Let’s say I sell mobile phones. I might sell phones with the following tiered pricing iPhone4 (1x$200ea. 3x$150ea. 10x$100ea.) iPhone4s (1x$300ea. 3x$250ea. 10x$200ea.) iPhone5 (1x$500ea. 3x$400ea. 10x$1300ea.) Plus maybe I sell Samsungs, Nokias, accessories, etc.

So let’s say a customer wants to buy 3 iphones, but they want 1x iPhone 4, 1x iPhone 4s and 1x iPhone 5. Instead of getting the single unit price for each, we would want to group iphones, so that they would get the 3x price for each unit. So they would spend $150 on the iPhone 4, $250 on the iPhone 4s and $400 on the iPhone 5.... We’d have several categories and could create some type of spreadsheet for you, but would want to also have the ability to set up this categorization in the future.

So please tell me how to get this done from magento admin or any other way?