I'm confused. How do you setup the add to cart button for particular items differently than others? I mean, if you aren't setting up these pages manually? I guess, what I'm asking is, how do you assign an item a column value (the column you setup in eCart)?
I'm trying to apply a "Free shipping" promotion to only a certain brand of products. I tried doing the free shipping discount, and included the items in the trigger, but it then discounts the entire shipping amount, including items that were in the cart, that are not of that brand. So I need to figure out a way around that - and I think what you describe here is what I need, but don't know how to assign the items with the value I choose.