The Bookmarks panel provides a convenient way to navigate within your PDF document. Enable it by choosing Bookmarks from the Navigation Panels drop-down menu on the View toolbar. With this panel, you can
delete or rename existing bookmarks
create new bookmarks
define a multi-level bookmark structure
set where a bookmark should point to
customize bookmark appearance and behavior
assign specific actions to bookmarks
set general bookmark preferences
generate a Table of Contents from your bookmark structure
See Bookmarks, Named Destinations for more detail.