The Pictures page demonstrates one way to add pictures to pages you create for your site.
You can add pictures or other digital images to a SubPage using the Picture User Item. Like other items that are designed to be used on a SubPage, the Picture User Item does not create a page by itself; it creates a picture that you place on a SubPage.
You can add multiple pictures to a single page, you can float the pictures left or right, and you can make the picture a thumbnail image that links to another page. The other page can show a full-size version of the image or any other content you care to display.
Please note that exhibits from your TMG project are automatically added to the site, and you can create Exhibit Galleries to display the exhibit images in groups. You do not need to add a Picture User Item for each of your TMG exhibits; you use Picture User Items for pictures or digital images that are not TMG exhibits.
The text above is in the Main Content field of the "Pictures Page Explanation" Custom Page User Item.