diff --git a/contain.c b/contain.c
index 6a54147..c3d2de4 100644
--- a/contain.c
+++ b/contain.c
@@ -103,6 +103,7 @@ GtkWidget *get_edit_space_page_new(){
 GtkWidget *get_run_space_top_box(){
   GtkBox *top_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2));
   gtk_box_append (top_box, GTK_WIDGET (get_ELAPSED_TIME_ProgressBar()));
+  gtk_box_append (top_box, GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_VERTICAL)));
   gtk_box_append (top_box, GTK_WIDGET (get_RUN_STOP_box()));
   return GTK_WIDGET (top_box);
 }
@@ -117,6 +118,7 @@ GtkWidget *get_run_space_left_box(){
 GtkWidget *get_run_space_right_box(){
   GtkBox *right_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_VERTICAL, 2));
   gtk_box_append (right_box, GTK_WIDGET (get_XYZ_box()));
+  gtk_box_append (right_box, GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_HORIZONTAL)));
   gtk_box_append (right_box, GTK_WIDGET (get_ZOOM_box()));
   return GTK_WIDGET (right_box);
 }
@@ -124,6 +126,7 @@ GtkWidget *get_run_space_right_box(){
 GtkWidget *get_run_space_bottom_box(){
   GtkBox *bottom_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2));
   gtk_box_append (bottom_box, GTK_WIDGET (get_run_space_left_box()));
+  gtk_box_append (bottom_box, GTK_WIDGET (gtk_label_new ("                        ")));  //  AD HOC (pour "centrer")
   gtk_box_append (bottom_box, GTK_WIDGET (get_run_space_right_box()));
   return GTK_WIDGET (bottom_box);
 }
@@ -168,10 +171,10 @@ void activate (GtkApplication *app, gpointer user_data) {
   gtk_notebook_append_page (edit_notebook, get_edit_help_page_new(),    gtk_label_new ("help"));
 
   GtkWidget *run_xor_edit_horizontal_pane = gtk_paned_new (GTK_ORIENTATION_HORIZONTAL);
-  gtk_widget_set_size_request (run_xor_edit_horizontal_pane, W_IMAGE, H_STYLES_PANE);
+  gtk_widget_set_size_request (run_xor_edit_horizontal_pane, 0, 0);
   gtk_paned_set_start_child (GTK_PANED(run_xor_edit_horizontal_pane), GTK_WIDGET (run_notebook));
   gtk_paned_set_end_child (GTK_PANED(run_xor_edit_horizontal_pane), GTK_WIDGET (edit_notebook));
-  gtk_paned_set_position (GTK_PANED (run_xor_edit_horizontal_pane), W_IMAGE + 90);  //  ! WARNING !  '90' is AD HOC
+  gtk_paned_set_position (GTK_PANED (run_xor_edit_horizontal_pane), W_IMAGE + 400);  //  ! WARNING !  '90' is AD HOC
   gtk_window_set_child (window, GTK_WIDGET(run_xor_edit_horizontal_pane));
   gtk_window_present (GTK_WINDOW (window));
 }
diff --git a/contain.h b/contain.h
index 1b2b391..016b459 100644
--- a/contain.h
+++ b/contain.h
@@ -9,7 +9,7 @@
 
 #define W 1920
 #define H 960
-#define W_IMAGE 1920 - 20
+#define W_IMAGE 1920 - 320
 #define H_IMAGE 960 - 126
 #define H_STYLES_PANE 60
 
diff --git a/contain.o b/contain.o
index 398af04..7350932 100644
Binary files a/contain.o and b/contain.o differ
diff --git a/display.c b/display.c
index e823a0b..812520e 100644
--- a/display.c
+++ b/display.c
@@ -29,11 +29,19 @@ static GtkWidget *get_scroll_speed(){
   gtk_widget_set_size_request (GTK_WIDGET (scroll_speed), 140, 2);
   return scroll_speed;
 }
+
+GtkBox *get_SPEED_box(){
+  GtkBox *SPEED_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_VERTICAL, 0));
+  gtk_box_append (SPEED_box, GTK_WIDGET(gtk_label_new ("\n")));
+  gtk_box_append (SPEED_box, get_scroll_speed());
+  return SPEED_box;
+}
+
 GtkBox *get_RUN_STOP_box(){
   GtkBox *RUN_STOP_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 20));
 //  gtk_box_append (RUN_STOP_box, gtk_label_new ("\n"));
   gtk_box_append (RUN_STOP_box, GTK_WIDGET(gtk_label_new ("      R U N\n     S T O P")));
-  gtk_box_append (RUN_STOP_box, get_scroll_speed());
+  gtk_box_append (RUN_STOP_box, GTK_WIDGET (get_SPEED_box()));
   gtk_box_append (RUN_STOP_box, GTK_WIDGET(gtk_label_new ("            STEP\n(show active rule)    ")));
 //  gtk_box_append (RUN_STOP_box, GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_VERTICAL)));
   return RUN_STOP_box;
@@ -45,7 +53,7 @@ GtkBox *get_ZOOM_box(){
   GtkWidget *ZOOM_Label = GTK_WIDGET (gtk_label_new (\
     "\n   TOOLS\n      ---\n   zoom\n      ---\n   (space\n   struct.)\n\
       ---\n   (arrows\n   struct.)\n"));
-  gtk_widget_set_size_request (GTK_WIDGET (ZOOM_box), 30, 80);
+  gtk_widget_set_size_request (GTK_WIDGET (ZOOM_box), 10, 80);
   gtk_box_append (ZOOM_box, ZOOM_Label);
   return ZOOM_box;
 }
@@ -55,7 +63,7 @@ GtkBox *get_ZOOM_box(){
 GtkBox *get_edit_TOOL_box(){
   GtkBox *TOOL_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0));
   GtkWidget *ZOOM_Label = GTK_WIDGET (gtk_label_new ("TOOLS\n    ---\n(space\nstruct.)"));
-  gtk_widget_set_size_request (GTK_WIDGET (TOOL_box), 30, 120);
+  gtk_widget_set_size_request (GTK_WIDGET (TOOL_box), 10, 120);
   gtk_box_append (TOOL_box, ZOOM_Label);
   return TOOL_box;
 }
@@ -73,7 +81,7 @@ GtkBox *get_XYZ_box(){
   GtkWidget *scroll_X = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, X_adjust);
   GtkWidget *scroll_Y = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, Y_adjust);
   GtkWidget *scroll_Z = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, Z_adjust);
-  gtk_widget_set_size_request (GTK_WIDGET (scroll_X), 1, 250);
+  gtk_widget_set_size_request (GTK_WIDGET (scroll_X), 1, 500);
 
   gtk_box_append (XYZ_scrollbar_box, GTK_WIDGET (gtk_label_new ("  ")));  //  AD HOC (pour "centrer")
   gtk_box_append (XYZ_scrollbar_box, scroll_X);
@@ -97,7 +105,7 @@ GtkProgressBar *get_ELAPSED_TIME_ProgressBar(){ //  TODO ? <> rename : DO - UNDO
   "\n<---  [buffer]  (simulation extensive time)  --->\n\
     supports DO - UNDO - REDO   functions\n");
   gtk_progress_bar_set_show_text (buffer, TRUE);
-  gtk_widget_set_size_request (GTK_WIDGET (buffer), W_IMAGE, 0);
+  gtk_widget_set_size_request (GTK_WIDGET (buffer), W - 400, 0);
   return buffer;
 }
 
diff --git a/display.o b/display.o
index bd8ba06..181afae 100644
Binary files a/display.o and b/display.o differ
diff --git a/myprogram b/myprogram
index 0e76cd5..3cd6ca3 100755
Binary files a/myprogram and b/myprogram differ
diff --git a/warm.o b/warm.o
index d24cb86..fada0b9 100644
Binary files a/warm.o and b/warm.o differ