Mouse Double-Click Timeout

  DECwindows can distinguish between two successive single
  clicks and a double click.

  To change the speed by which DECwindows expects one click
  to follow another in a double-click sequence:

  1.  Choose Pointer...  from Session Manager's Options menu.

      Session Manager displays the Pointer Options dialog box.

  2.  Drag the arrow in the Mouse Double Click Timeout scale
      right to increase the speed.  Drag the arrow to the left to
      decrease the speed.

  3.  You can also move the pointer to a location on the scale
      and click MB1.

  4.  Click on either the OK or Apply button.