[ic] discount on a category with mixmatch (not all items)

[interchange-users@icdevgroup.org (Rick Bragg)]

Hi,

Is there a way to set a discount on a particular group of products (not 
all items) based on the quantity with the ability to mix and match?

i.e.
10% discount on all of a particular category of products if they order 
over 5 items. either 5 of one item, or 5 different items of that group 
or category.

Thanks
rick