This is a powerful image zoom tool that works as a fantastic flexible system! It is compatible with Virtuemart, HikaShop, JoomShopping, and Phoca Cart. In addition, you can also use with any component of joomla that can insert text (shortcode).
Please go into the configuration of the Plugin. Here you can insert CSS selector to display the image zoom for the product page.
.hikashop_product_main_image_subdiv > a
CSS selector for thumbnails:
#hikashop_small_image_div
.ph-item-image-full-box > a
CSS selector for thumbnails:
.ph-item-image-add-box
#list_product_image_middle > a
CSS selector for thumbnails:
.additional-images
.main-image > a
CSS selector for thumbnails:
.additional-images
Note: The CSS Selector may not work if you have edited the original template of the e-commerce components. If you have edited the template of the e-commerce component, You need to enter the correct CSS selector for the plugin to work.