I have a shoe store, as you know, Drupal Commerce allow us to control each Attribute of Shoe like Color and Size.

This is my problem :

I have 2000 shoe styles, each style has sizes from 5-12 (6US to 12US) It mean that everytime I add new style, I have to create 8 products for 8 sizes. Im using Clone Product Module, it's working very well, but how can I save my time :

It mean that when I create New Shoe Style (Node Products Display) --> node/add/shoe-style --> the system will auto generate 8 products (Size) for me, it depend on how many value in my attribute field (Size attribute has 8 value and system will create 8 new product), and now what we need to do is update something to each product.