Size Matrix

Hello,

I have been looking for an e-commerce plugin which displays an ordering size matrix when a garment (or any item) with multiple size options is selected. To explain, once the item (shirt) & color is selected, we need the entire size matrix to display (input boxes with the sizes above or next to the boxes – all displayed on the page at once, so the customer can add 3 smalls, 4 mediums, 1 large, etc. all on the same page without going back to the product and making the selection(s) again.

Has anyone seen such an animal? Thank you in advance for your help!

Dave