Navigation folders provide contributors with several options:
None - Don't do anything (often used in cases for tricking breadcrumbs into working with custom types)
Content Object - Display a child element like an HTML or Include object
Redirect - Redirect the user elsewhere (either an internal object (like another navigation node) or an external website
Content Pull - Reflects the current functionality of pulling in content from another location (but not redirecting the user there. Note that navigation relationships stay the same as the calling page)