Collapse

  To remove the list of sub-sections from the display, select the
  section and choose Collapse from the Navigation window's
  View menu.

  Or, double click on the down arrow beside the section.

  The section remains, but the sub-sections no longer appear.

  Additional topics:

  *   Navigation Window Menus

  *   Using Menus, Controls, and Dialog Boxes

  *   Bookreader Help Topics