The Gallery is another pre-built feature that can be used by your custom content. Galleries are managed by using the Gallery widget.
Every content page can have its own gallery. When you need to add multiple images to your content page (e.g., different images of some product), the Gallery is your place to go.
The Gallery widget allows you to upload multiple images, but it can also help you to find appropriate available photos of your product in the available online free stock photo directories.
In the Gallery part of the documentation we will talk about:
If the products that you are selling on your webstore have multiple variants, the gallery is a necessary tool for advertizing those products. Learn how to add product variant images to your product pages.