Minimizing Windows
  If you have several applications running at the same time,
  you can free up space on your screen to run another
  application by minimizing a window, which means that
  you shrink the window to an icon.  When you minimize a
  window, the application it represents continues to run and
  easily is accessible.  All processes continue to execute while the
  application is stored as an icon.
  To minimize a window:
  1.  Point to the window's minimize button.
  2.  Click MB1.
      The window closes and its icon appears on the Workspace.
                                Note
      You can also minimize a window by double clicking
      MB1 on the window title.