[ic] Combining products for discounts

[Bob Puff@NLE]

Hello,

I've just come across another unique request.  THere is a certain group 
of items that get quantity discounts.  No problem so far.  However, if a 
user purchases even just one of each of the couple dozen items in this 
category, they should receive the quantity discount when the number 
exceeds the quantity threshold.  

In other words, with the quantity breaks at 10,

 10 widget As get quantity pricing.

 5 widget As and 5 widget Bs get quantity pricing.

etc...

Is there a way to group these together, and apply some sort of discount?  There are probably at least 30 items that get grouped this way.

Bob