By default, woocommerce supports only one image per variation, but with our plugin, you can add any number of images for each variation. check this out .
Basically, in simple words, you can enable WooCommerce variation gallery with this plugin, where each variation will have its own gallery.
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With version 1.1, you don’t need to add images from the variation gallery to each variation one by one. Use our tool to set it up in bulk. It saves a lot of time.
Using the site-wide global image tool, you can set images for products, variations of just one page. It supports product main image, product gallery images, variation image and variation gallery images.