On Fri, 21 Sep 2001 11:30:38 -0400, Tom Rawson <[log in to unmask]> wrote:

>This option still appears to me to have nothing to do with the usual
>meaning of GUI.  Since LSOFT doesn't document it in the List Owners
>manual, I am not sure what their intent was.

***GUI*** is documented in the Developers Guide, Chap 6.4.5

  http://www.lsoft.com/Manuals/1.8d/Developer/developer.html#6.4.5