This snippet allows you to link an image or text to a pop-up window displaying an image. This pop-up can be a single image for that link or a gallery of multiple images from the links on the page. This is an advanced function.
This asset will allow you to group multiple images together into an image gallery. The page you are adding the asset to has a setting where you can select between a couple formatting options for your displayed gallery. You must have your images sized appropriately outside of the CMS before adding them to the gallery. All styles will allow the user to click on the image on the page to see the full-size image that is uploaded.