Using the Help System
  For an overview of the DECwindows help system, choose
  Overview from the Help menu above.
  You will see a number of additional topics with information
  on tasks you can perform using the help system.
  For more information, double click on any bold hotspot.
  Additional topics:
  *   Taking Screen Snapshots
  *   Using Options Menus to Change Print Screen
      Settings
  *   Using File, Options, Help Pull-down Menus
  *   Overview of Print Screen
  *   Exiting Print Screen