diff --git a/include/calls.h b/include/calls.h
index 687a9bb..e2c6cd4 100644
--- a/include/calls.h
+++ b/include/calls.h
@@ -71,7 +71,8 @@ void on_SITUATIONS_box_RESET_VALUE (GtkAdjustment *adjustment, gpointer data);
 void on_SITUATIONS_box_DO_RESET (GtkWidget *btt_reset, gpointer data);
 
 void on_clicked_HOME (GtkWidget *btt_reset, gpointer data);
-void on_clicked_MENU (GtkWidget *btt_reset, gpointer data);
+//void on_clicked_MENU_list_box (GtkWidget *btt_reset, gpointer data);
+void on_clicked_MENU_pop (GtkWidget *btt_reset, gpointer data);
 
 
 
diff --git a/src/calls.c b/src/calls.c
index 1be19f3..1f99405 100644
--- a/src/calls.c
+++ b/src/calls.c
@@ -348,11 +348,11 @@ void on_SITUATIONS_box_DO_RESET (GtkWidget *btt_reset, gpointer data)
 /******************************************************************************/
 
 
-void on_clicked_MENU (GtkWidget *btt_reset, gpointer list_box)
-{
+void on_clicked_MENU_pop (GtkWidget *btt_reset, gpointer pop) {
+  gpointer list_box = gtk_popover_get_child (GTK_POPOVER (pop));
   if (gtk_list_box_get_row_at_index (list_box, 3))
-    printf ("callback.on_clicked_MENU() button  >  %p  < &list_box  >   children nb > 3\n", list_box);
-  else printf ("callback.on_clicked_MENU() button   >   in list_box are the three buttons :  %s, %s, %s\n\
+       printf ("callback.on_clicked_MENU() button  >  %p  < &list_box  >   children nb > 3\n", list_box);
+  else printf ("callback.on_clicked_MENU() button  >   in list_box are the three buttons :  %s, %s, %s\n\
           and now : how to display these three buttons (and make use of them) ?   2024-07-13  (20h)\n",\
           gtk_button_get_label (GTK_BUTTON (gtk_list_box_row_get_child (gtk_list_box_get_row_at_index (list_box, 0)))),
           gtk_button_get_label (GTK_BUTTON (gtk_list_box_row_get_child (gtk_list_box_get_row_at_index (list_box, 1)))),
diff --git a/src/widget.c/heads.c b/src/widget.c/heads.c
index a6c2349..77be46d 100644
--- a/src/widget.c/heads.c
+++ b/src/widget.c/heads.c
@@ -178,20 +178,23 @@ static void window_header_bar (GtkWindow *window, char *title)
 //  GtkWidget *menu_item_D = GTK_WIDGET (gtk_button_new_with_label ("button_D"));  gtk_list_box_append (GTK_LIST_BOX (list_box), menu_item_D);
 //  gtk_list_box_append (GTK_LIST_BOX (list_box), gtk_label_new ("any text"));
 
-  GtkButton *open_menu = GTK_BUTTON (gtk_button_new ());    //   gtk_button_new  or  gtk_menu_button_new ?
+  GtkWidget *pop = gtk_popover_new ();
+  gtk_popover_set_child (GTK_POPOVER (pop), list_box);
+  if (0) gtk_popover_popup (GTK_POPOVER (pop));
+  GtkButton *open_menu = GTK_BUTTON (gtk_button_new ()); //  gtk_button_new  or  gtk_menu_button_new ?
   gtk_button_set_icon_name (GTK_BUTTON (open_menu), "open-menu-symbolic");
-//  gtk_menu_button_set_label (open_menu, "open-menu-symbolic");
-//  gtk_menu_button_set_child (open_menu, list);
-  g_signal_connect (open_menu, "clicked", G_CALLBACK (on_clicked_MENU), list_box);
+//  g_signal_connect (open_menu, "clicked", G_CALLBACK (on_clicked_MENU_list_box), list_box);
+  g_signal_connect (open_menu, "clicked", G_CALLBACK (on_clicked_MENU_pop), pop);
   gtk_header_bar_pack_end (GTK_HEADER_BAR (header_bar), GTK_WIDGET (open_menu));
 
+/*
   gtk_header_bar_pack_end (GTK_HEADER_BAR (header_bar), GTK_WIDGET (get_menu_anchor()));
 
-
   GtkWidget *menu_btt = gtk_menu_button_new ();
   gtk_menu_button_set_child (GTK_MENU_BUTTON (menu_btt), NULL);
   gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (menu_btt), NULL); // GMenuModel* menu_model
   gtk_header_bar_pack_end (GTK_HEADER_BAR (header_bar), GTK_WIDGET (menu_btt));
+*/
 }
 
 void widget_head_MAIN_WINDOW_design (GtkWindow *main_window){
diff --git a/src/widget.c/menu.c b/src/widget.c/menu.c
index c8e257c..a8bdfa9 100644
--- a/src/widget.c/menu.c
+++ b/src/widget.c/menu.c
@@ -81,6 +81,9 @@ static GListModel* get_user_menu_model (GObject *item, gpointer root){
 
 GtkWidget *get_menu_anchor()
 {
+  // https://docs.gtk.org/gio/class.MenuModel.html
+  // https://www.geany.org/manual/gtk/gobject/index.html
+
   if (0) labo_create_a_simple_gtk_string_list ();
   struct MenuNode_t *menu_root   = create_user_menu_node("menu");
   struct MenuNode_t *item_a = create_user_menu_node("item_a");add_menu_item (menu_root, item_a);