Once items are imported, it is fairly simple to build an exhibit. Below are instructions for using Omeka's Exhibit Builder 3.0 plugin, as well as links to some other resources and guides for building exhibits in Omeka. The Exhibit Builder plugin uses "pages" to divide content, and within pages content can be put into "blocks." Exhibits are also customizable by theme. Some themes are more metadata-heavy, while others are image-focused, so select your theme based on your needs for a particular exhibit. And crucially, don't forget to click "Save Changes" regularly to save your work.
In Omeka, "blocks" are the best way to divide content on a single page. Users select one of four types of blocks for their content: "File with Text" (an image alongside text), "'Gallery" (a gallery of images, with or without captions), "Text" (plain text, no images), or "File" (only a file, whether it be an image or audio clip). Below is an image of the admin view of a page with a number of blocks within it.
The Omeka Classic User Manual includes a section on using the Exhibit Builder plugin. This is another good resource to take advantage of if you're building an Omeka exhibit for the first time.
Omeka produced a short video, "Omeka Classic: Exhibit Builder 3.0 Plugin," that includes a walkthrough of creating an Omeka exhibit.
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