Hello,

If you are referring to showing the Gallery Images for a Product then you need to define them under the Product Gallery: https://snipboard.io/72NOco.jpg

Or if you are referring to just adding Images to Variations directly without adding Images to Gallery and then show them at the Gallery area then sorry to say that wouldn’t be possible. It will then show the Images for those Variants, if they are selected only. This is how it works under WooCommerce by default.

Hope you can understand !

Best Regards