Add Store Name and Thumbnail Gallery w/lightbox to mp_product.php

Continuing from this post:https://premium.wpmudev.org/forums/topic/edit-product-meta-inside-mp_productphp

For global product page, I want to add the store name? What would be the store name?

Also I want to know how I can create thumbnail gallery with lightbox function of other pictures of a product WITHOUT using the content area or gallery built-in wordpress?