Galleries are grouped collections of Gallery Images. You may create multiple galleries to suit your needs.
Gallery Image thumbnails display on a Gallery page, with a Start Slideshow button at the top which launches a modal popup to navigate through the gallery.
Unlike most other content types, Galleries require two separate steps:
Step 1: Create the Gallery placeholder
Step 2: Add Gallery Images
Like some other content types, Galleries will not automatically appear on your site pages when you publish them. You will need to link to each Gallery from another page, from content on your department homepage, or from the sidebar navigation.