Track a product that varies per item

Track a product that varies per item

I am trying to use Zoho inventory to track my inventory of fabric. Each item I have varies. In one pattern and color I may have 6 pieces that are all a different size. Is there a way to configure the inventory to allow me to add the pattern and color and then add each pieces individual size? I have tried with item group but from what I have seen it does not show the total for the item group.