Right now there is no way within Xstore to hook into the theme to add content after the product image gallery. The default woocommerce hook of woocommerce_product_thumbnails does not work. It would be great if we could have a new action to be able to add content right after the thumbnails.
I realize we can edit the file wp-content/themes/xstore/woocommerce/single-product/product-image.php and register our own action, but that if flawed since it would be overwritten with every Xstore update. Alternatively we could copy the file to our child theme, but again, we would be faced with having to monitor the core file for updates and update our child theme – also not ideal. If you could simply add a new action to this file for the next release, that would be amazing!