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

  1.  Move the mouse pointer to the Session Manager icon (the icon that
      contains a small key in it) in the Icon Box.

  2.  Press mouse button 1 (MB1) twice to display the Session Manager
      window.

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

  4.  Move the mouse pointer to the On Basics menu item and release MB1.
      The Session Manager displays a Help window, which includes a list
      of Additional Topics about using DECwindows Motif.