
Part of my CMS is a webshop, based on at least the Products and Cart module. My products consist out of parts; it's a bundle of papers, and the papers are divided in various parts/categories, say A, B, C, D and E. Sometimes, users would like to order extra parts of B, C and D. However, without the rest of the bundle. It would be very un-logical and user-UNfriendly to split the parts up in seperate Products beforehand.
I can add an extra field in a Product that holds the price for ordering extra B/C/D, but how to integrate this neatly?
Or is there somebody that can help me on my way/other idea?

Thanks in advance,
Bert