Zen Cart does not allow uploading of multiple images for the same product directly from the admin interface. However it is possible with the help of manually uploading the images via FTP. Let’s see how to do it in details.
1. Create a product and upload the first image for it from the Zen Cart admin. Lets assume name of the image is product_image.jpg and it is uploaded in the “images” folder.
2. Rename the extra images of the same product as product_image_1.jpg , product_image_2.jpg . product_image_3.jpg …. product_image_x.jpg
3. Upload the extra images in the ‘images’ folder (same folder where the main image was upload via the Zen Cart admin) using the FTP.
That’s it. You will be able to see the extra images in the product details page now.