diff --git a/hot.c b/hot.c
index 240f355..88dc9c3 100644
--- a/hot.c
+++ b/hot.c
@@ -25,7 +25,7 @@ static GtkWidget *get_RUN_STOP_label(){
 static GtkWidget *get_scroll_speed(){
   GtkAdjustment *speed_adjust = gtk_adjustment_new (0, 0, 100, 1, 0, 0);
   GtkWidget *scroll_speed = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, speed_adjust);
-  gtk_widget_set_size_request (GTK_WIDGET (scroll_speed), 2, 200);
+  gtk_widget_set_size_request (GTK_WIDGET (scroll_speed), 2, 140);
   return scroll_speed;
 }
 
@@ -37,16 +37,17 @@ static GtkBox *get_speed_scrolling_box(){
 }
 
 static GtkWidget *get_STEP_by_STEP_Label(){
-  GtkWidget *RS_label = gtk_label_new ("  Step\n\n(show\nactive\n rule)");
+  GtkWidget *RS_label = gtk_label_new ("  Step\n\n(show\nactive\n rule)\n_______");
   gtk_widget_set_size_request (GTK_WIDGET (RS_label), 20, 30);
   return RS_label;
 }
 
 GtkBox *get_RUN_STOP_box(){
   GtkBox *RUN_STOP_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_VERTICAL, 20));
+  gtk_box_append (RUN_STOP_box, gtk_label_new ("\n"));
   gtk_box_append (RUN_STOP_box, get_RUN_STOP_label());
   gtk_box_append (RUN_STOP_box, GTK_WIDGET (get_speed_scrolling_box()));
   gtk_box_append (RUN_STOP_box, get_STEP_by_STEP_Label());
-  gtk_box_append (RUN_STOP_box, gtk_label_new ("\n\n"));
+  gtk_box_append (RUN_STOP_box, gtk_label_new ("\n"));
   return RUN_STOP_box;
 }
diff --git a/hot.o b/hot.o
index 7eba6ba..5875d8d 100644
Binary files a/hot.o and b/hot.o differ
diff --git a/myprogram b/myprogram
index 35710bb..afcc147 100755
Binary files a/myprogram and b/myprogram differ
diff --git a/pages.c b/pages.c
index 01dddb4..d4ae2e3 100644
--- a/pages.c
+++ b/pages.c
@@ -114,12 +114,13 @@ GtkWidget *get_run_space_page_new(){
 // same result using either :   get_ELAPSED_TIME_box()   or   get_simulation_time_extent_buffer()
   gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(get_ELAPSED_TIME_box()), 0, 0, 1, 1);
   gtk_grid_attach (GTK_GRID(space_grid), get_test_image(), 0, 1, 1, 2);
-  gtk_grid_attach (GTK_GRID(space_grid), get_objects_and_situations_horizontal_pane(), 0, 3, 1, 1);
+  gtk_grid_attach (GTK_GRID(space_grid), gtk_label_new ("\n"), 0, 3, 1, 1);
+  gtk_grid_attach (GTK_GRID(space_grid), get_objects_and_situations_horizontal_pane(), 0, 4, 1, 1);
 
   gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(get_RUN_STOP_box()), 1, 0, 1, 2);
 //  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_HORIZONTAL)), 1, 1, 1, 1);
   gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(get_XYZ_box()), 1, 2, 1, 1);
-  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(get_ZOOM_box()), 1, 3, 1, 1);
+  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(get_ZOOM_box()), 1, 3, 1, 2);
 
   return space_grid;
 }
diff --git a/pages.o b/pages.o
index 313d42f..551fb1d 100644
Binary files a/pages.o and b/pages.o differ
diff --git a/warm.o b/warm.o
index 457afbf..6fac906 100644
Binary files a/warm.o and b/warm.o differ
diff --git a/widgets.c b/widgets.c
index c1651af..0309a5b 100644
--- a/widgets.c
+++ b/widgets.c
@@ -16,6 +16,7 @@ GtkWidget *get_test_image(){
   image = gtk_image_new_from_file("/home/jean/01/Gtk4/Getting_Started_with_GTK/image aXoris.png");
   image = gtk_picture_new_for_filename ("/home/jean/01/Gtk4/Getting_Started_with_GTK/image gg sketch.png");
   image = gtk_picture_new_for_filename ("/home/jean/01/Gtk4/Getting_Started_with_GTK/image E coli (Goodsell).png");
+  gtk_widget_set_size_request (GTK_WIDGET (image), W_IMAGE, NULL);
   return image;
 }
 
@@ -74,7 +75,7 @@ static GtkProgressBar *get_simulation_time_extent_buffer(){
   gtk_progress_bar_set_text (buffer, "<---  [buffer]  (simulation extensive time)  --->\n\
     supports DO - UNDO - REDO   functions");
   gtk_progress_bar_set_show_text (buffer, TRUE);
-  gtk_widget_set_size_request (GTK_WIDGET (buffer), W_IMAGE, 50);
+  gtk_widget_set_size_request (GTK_WIDGET (buffer), W_IMAGE, 0);
   return buffer;
 }
 
diff --git a/widgets.o b/widgets.o
index 383b60c..1502a1b 100644
Binary files a/widgets.o and b/widgets.o differ