By using Fragments in your document, you can include previously created design elements. For example, overlays, address definitions etc. stored as resources in a resource set.
Just as any other StoryTeller document, an SSD file used for Fragments can contain several page definitions, as well as Stories that can flow between Story frames within the Fragment.
Only one page definition of the SSD file can be used at a time as a Fragment, where you specify the page to use. Both the URI to the StoryTeller document resource and the Fragment page definition can be dynamically selected in runtime. See
Selecting Fragments dynamically.
You can edit embedded Fragments. If the embedded Fragment is an SSD file with more than one page definition, all page definitions in the document are listed with their content in the Fragment Pages panel. If the SSD file contains Stories, they are listed in the Fragment Stories panel.