You can add an unlimited number of images to every product in your store. We recommend using JPG, PNG, and GIF images in RGB color mode.

When you add multiple images of a product, the first uploaded image is considered the main. It shows as a product thumbnail on a category page and that's the first image shown on the product page. To change the main image, drag a different image to the first place. You can also sort the other images by dragging them. Customers will see images in this order in the storefront.

Select the E-Commerce tile.

Select the Catalog tab.

Choose a product you want to add an image of. 

In the Description section, either drag and drop images from your computer or select “Insert Image”.

Select “Save” once your images are uploaded.