We are using Shopperpress for our shopping cart. One problem, you can assign a total quantity and multiple sizes but you can't specify a quantity for each size. For example: quantity 20 - S, M, L. We would like to have quantity 20 - S (5), M (10), L (10) and it automatically adjust the quantity. The backend will allow for Size, Quantity, Product Color, and then there are 2 additional fields or values to work with.
Here's the site: [url removed, login to view]
Here's a test product that I used to simply put the number by size but it won't alter the quantity automatically: [url removed, login to view]
Thanks for your time.