The Image Gallery block provides a simple way to embed a single image gallery in a page layout. Using this block is an alternative solution to embedding a gallery directly into the body of a page.
This block type is only available after a site admin has enabled the optional Image Gallery Module.
Add this block to a page layout just as you would with any other block, as described in the page layouts documentation.
The Image Gallery field on the block configuration form is where you select which image gallery you would like to display. Galleries must already have been created before they can be added to a page. They cannot be added or edited directly from the block configuration form.