The Help window is split into three sections. Like all
  DECwindows applications, the top section is a menu bar.
  The menus in the Help menu bar are File, Edit, View,
  Search, and Using Help.

  Under the menu bar is the topic title and the help text
  describing the particular topic. For example, this is
  the second paragraph of help text in the topic titled
  Help Window.

  Under the help text is a section called Additional
  Topics. This is a list of other topic titles that  are
  relevant to the information provided in the current
  topic. For example, two of the additional topics below
  are called Help Texts and List of Additional Topics.

  To find out more about a particular section of the help
  window, select it from the list below.

1  –  over_guide_help_frame

  The help text is the part of the window where the
  information itself is displayed.

2  –  over_guide_list_box

  The list of additional topics identifies topics that can
  be selected from the current help topic.

  Double click on a topic to select it.