Displays detailed help information on highlighted words.

Use:
  Cursor keys   Highlight the word you want more information
                on.
  F1, Enter     See detailed help for highlighted word.
  ESC           Exit the help mode.

While looking at a help screen:
  PgUp          See previous screen (unless first screen is
                being shown).
  Enter         Show next help screen or return to topic
                selection mode if last screen for current
                topic is being shown.
  ESC           Cancel further displays for current topic.

If "-More-" occurs at the end of a help screen then there is
further information to be seen.
