diff -ur userman/xgui_editor.tex userman/xgui_editor.tex
--- userman/xgui_editor.tex    2009-10-08 21:54:26 +0000
+++ userman/xgui_editor.tex     1998-09-03 13:40:07 +0000
@@ -263,7 +263,7 @@
 {\tt Sites}.
 
 \begin{enumerate}
-
+\item Preface
 \begin{itemize}
 
 \item {\tt Flags Safety}: sets/resets safety flag (a flag to prompt