Select specific element for price variation

While this doesn't effect the way your shop is set up, I've extended the shop to have a holder page (with multiple products), on which you can add to cart directly from this page. I want to be able to update the module without needing to edit it, so I wondered if it was possible to include this in the module site files. It doesn't add much overhead to the out-of-the-box shop, but adds functionality to those of us who want to extend it.