diff --git a/exec.o b/exec.o
index 12193e1..f81c011 100755
Binary files a/exec.o and b/exec.o differ
diff --git a/hot.c b/hot.c
index 7a74adc..b815275 100644
--- a/hot.c
+++ b/hot.c
@@ -8,27 +8,39 @@ GtkWidget *get_space_page_new(){
   GtkWidget *space_grid = gtk_grid_new();
 
   GtkScrolledWindow *scrolled = GTK_SCROLLED_WINDOW(gtk_scrolled_window_new());
-  gtk_scrolled_window_set_min_content_width (scrolled, 650);
+  gtk_scrolled_window_set_min_content_width  (scrolled, 600);
   gtk_scrolled_window_set_min_content_height (scrolled, 600);
-  GtkAdjustment *width = gtk_adjustment_new (600, 300, 1000, 1, 1, 1000);
+  GtkAdjustment *width  = gtk_adjustment_new (600, 300, 1000, 1, 1, 1000);
   GtkAdjustment *height = gtk_adjustment_new (600, 300, 1000, 1, 1, 1000);
   //  (value, lower, upper, step_increment, page_increment, page_size)
   GtkWidget *viewport = gtk_viewport_new (width, height);
   gtk_scrolled_window_set_child (scrolled, viewport);
-  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(scrolled), 0, 0, 1, 1);
+
+  GtkBox *controls_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0)); // spacing = 2
+  gtk_box_append (controls_box, gtk_button_new_with_label ("RUN / STOP"));
+  gtk_box_append (controls_box, gtk_button_new_with_label ("slow down / speed up"));
+  gtk_box_append (controls_box, gtk_button_new_with_label ("step by step"));
+  gtk_box_append (controls_box, gtk_button_new_with_label ("buffer"));
 
   GtkBox *XYZ_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2)); // spacing = 2
-//  GtkWidget *X_bar = gtk_action_bar_new(); gtk_action_bar_set_revealed (GTK_ACTION_BAR(X_bar), TRUE);
-//  GtkWidget* X_reveal = gtk_revealer_new ();  gtk_revealer_set_child (X_reveal, X_bar);
-//  gtk_box_append (XYZ_box, X_bar);
-  gtk_box_append (XYZ_box, gtk_button_new_with_label ("X"));
-  gtk_box_append (XYZ_box, gtk_button_new_with_label ("Y"));
-  gtk_box_append (XYZ_box, gtk_button_new_with_label ("Z"));
-  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(XYZ_box), 1, 0, 1, 1);
+  //  GtkWidget *scale_X = gtk_scale_button_new (0, 360, 10, NULL);  <  à étudier
+  //                    (double min, double max, double step, const char** icons)
+  GtkAdjustment *X_adjust = gtk_adjustment_new (0, 0, 380, 10, 0, 0);
+  GtkAdjustment *Y_adjust = gtk_adjustment_new (0, 0, 380, 10, 0, 0);
+  GtkAdjustment *Z_adjust = gtk_adjustment_new (0, 0, 380, 10, 0, 0);
+  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_grid_attach (GTK_GRID(space_grid), gtk_button_new_with_label ("RUN / STOP    (all that stuff...)"), 0, 1, 2, 1);
-  gtk_grid_attach (GTK_GRID(space_grid), gtk_button_new_with_label ("Objects / Situations     (transparences, style)"), 0, 2, 2, 1);
-  gtk_grid_attach (GTK_GRID(space_grid), gtk_button_new_with_label ("zoom,...\n+/- grid"), 1, 1, 2, 3);
+  gtk_box_append (XYZ_box, scroll_X);
+  gtk_box_append (XYZ_box, scroll_Y);
+  gtk_box_append (XYZ_box, scroll_Z);
+
+  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(scrolled), 0, 0, 2, 1);
+  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(controls_box), 0, 1, 1, 1);
+  gtk_grid_attach (GTK_GRID(space_grid), gtk_button_new_with_label ("Objects / Situations     (transparences, styles)"), 0, 2, 1, 1);
+  gtk_grid_attach (GTK_GRID(space_grid), gtk_button_new_with_label ("zoom, +/- grid,\npresentation,\nstyles,..."), 1, 1, 1, 2);
+  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(XYZ_box), 2, 0, 1, 3);
   return space_grid;
 }
 
diff --git a/warm.c b/warm.c
index ded98e5..6913140 100644
--- a/warm.c
+++ b/warm.c
@@ -46,7 +46,7 @@ GtkWidget *get_rules_page_new(){
 
   gtk_paned_set_start_child (GTK_PANED(hpaned), GTK_WIDGET (frame1));
   gtk_paned_set_end_child (GTK_PANED(hpaned), GTK_WIDGET (frame2));
-  gtk_widget_set_size_request (hpaned, 800, 600);
+  gtk_widget_set_size_request (hpaned, 600, 600);
   gtk_widget_set_size_request (frame1, 300, 0); //  <  utile seulement pour la largeur min/max
 //  gtk_widget_set_size_request (frame2, 50, 100);