Content sliders in NationBuilder work well for sites that are trying to grab the attention of a reader and direct them to various locations on one's site, but there are times when a nation may want to allow a user to simply scan through a variety of images that are related to a single topic. For instance, perhaps you have hosted an event and want to display images from that event on your site. When this happens, a better option is to implement an image gallery.
Creating the Page's Content
Image galleries are created by looping through the page's attachments. Keep in mind, however, that this will display ALL attachments, so be certain that the files you attach to the page are only images. Avoid adding .pdf file attachments to this page.
To add attachments to a page, login to your nation's admin dashboard. Locate the page on which the gallery will appear and click on the page slug. Choose the tab labeled "Files" and click the yellow button labeled "Upload".