Information about using DECwindows, such as how to use
  windows, dialog boxes, and scroll bars, is available
  from Session Manager help.  A glossary of DECwindows
  terms is also available.  To get Session Manager help:

  o  Move the pointer to the Session Manager icon
     (the icon with your user name and the name of
     your system) in the Icon Box.

  o  Double click MB1 twice quickly to display the
     Session Manager window.

  o  Move the pointer to the Help menu; press and
     hold MB1 to pull down this menu.

  o  Move the pointer to the On Basics menu item
     and release MB1 to display information about
     using DECwindows.