diff --git a/doc/sgpem2uman.texi b/doc/sgpem2uman.texi
index a890c8a..a6a5d6e 100644
--- a/doc/sgpem2uman.texi
+++ b/doc/sgpem2uman.texi
@@ -428,6 +428,7 @@ install @command{dot}, part of the @emph{Graphviz} package.
 @cindex GUI
 
 @menu
+* Overall view of the main window::
 * The Schedulables/Requests tree::
 * The Resources list::
 * The Simulation widget::
@@ -438,7 +439,12 @@ install @command{dot}, part of the @emph{Graphviz} package.
 @end menu
 
 @c % -------------------------------------------------
-@node The Schedulables/Requests tree, The Resources list, From the GUI, From the GUI
+@node Overall view of the main window, The Schedulables/Requests tree, From the GUI, From the GUI
+@subsection Overall view of the main window
+@cindex main window
+
+@c % -------------------------------------------------
+@node The Schedulables/Requests tree, The Resources list, Overall view of the main window, From the GUI
 @subsection The Schedulables/Requests tree
 @cindex schedulables tree