diff --git a/hot.c b/hot.c
index c9c6772..371fb7e 100644
--- a/hot.c
+++ b/hot.c
@@ -14,7 +14,7 @@
 
 
 static struct TreeNode_t {gchar *text; struct TreeNode_t *child, *next;};
-
+static void add_child_node (struct TreeNode_t *parent, struct TreeNode_t *child);
 static struct TreeNode_t *create_user_tree_node (const gchar* text){
     struct TreeNode_t *node = g_malloc0 (sizeof(struct TreeNode_t));
     node->text = g_strdup (text);
@@ -22,6 +22,37 @@ static struct TreeNode_t *create_user_tree_node (const gchar* text){
     return node;
 }
 
+static void create_a_complex_useless_and_expensive_tree (struct TreeNode_t *tree_root){
+/*    struct TreeNode_t *move_random = create_user_tree_node("move random");  add_child_node(tree_root, move_random);
+    struct TreeNode_t *move_determ = create_user_tree_node("move determ");  add_child_node(tree_root, move_determ);
+    struct TreeNode_t *transport   = create_user_tree_node("transport");    add_child_node(tree_root, transport);*/
+    struct TreeNode_t *transform   = create_user_tree_node("transform");    add_child_node(tree_root, transform);
+    struct TreeNode_t *regulate    = create_user_tree_node("regulate");     add_child_node(tree_root, regulate);
+/*    struct TreeNode_t *isole       = create_user_tree_node("isolated object"); add_child_node(move_random, isole);
+    struct TreeNode_t *relie       = create_user_tree_node("part of object");  add_child_node(move_random, relie);
+    struct TreeNode_t *no_payload  = create_user_tree_node("free");         add_child_node(transport, no_payload);
+    struct TreeNode_t *charged     = create_user_tree_node("charged");      add_child_node(transport, charged);
+    struct TreeNode_t *spontaneous = create_user_tree_node("spontaneous");  add_child_node(transform, spontaneous);*/
+    struct TreeNode_t *catalysed   = create_user_tree_node("catalysed");    add_child_node(transform, catalysed);
+/*    struct TreeNode_t *isole_1D    = create_user_tree_node("isolated object move 1D"); add_child_node(isole, isole_1D);
+    struct TreeNode_t *isole_2D    = create_user_tree_node("isolated object move 2D"); add_child_node(isole, isole_2D);
+    struct TreeNode_t *isole_3D    = create_user_tree_node("isolated object move 3D"); add_child_node(isole, isole_3D);
+    struct TreeNode_t *translat_2D = create_user_tree_node("translation");  add_child_node(isole_2D, translat_2D);
+    struct TreeNode_t *rotat_2D    = create_user_tree_node("rotation");     add_child_node(isole_2D, rotat_2D);
+    struct TreeNode_t *rotat_X_2D  = create_user_tree_node("rotation axe X");  add_child_node(rotat_2D, rotat_X_2D);
+    struct TreeNode_t *rotat_Y_2D  = create_user_tree_node("rotation axe Y");  add_child_node(rotat_2D, rotat_Y_2D);
+    struct TreeNode_t *translat_3D = create_user_tree_node("translation");  add_child_node(isole_3D, translat_3D);
+    struct TreeNode_t *rotat_3D    = create_user_tree_node("rotation");     add_child_node(isole_3D, rotat_3D);
+    struct TreeNode_t *rotat_X_3D  = create_user_tree_node("rotation axe X");  add_child_node(rotat_3D, rotat_X_3D);
+    struct TreeNode_t *rotat_Y_3D  = create_user_tree_node("rotation axe Y");  add_child_node(rotat_3D, rotat_Y_3D);
+    struct TreeNode_t *rotat_Z_3D  = create_user_tree_node("rotation axe Z");  add_child_node(rotat_3D, rotat_Z_3D);
+    struct TreeNode_t *control     = create_user_tree_node("negative feedback (control)"); add_child_node(regulate, control);
+    struct TreeNode_t *enhance     = create_user_tree_node("positive feedback (enhance)"); add_child_node(regulate, enhance);*/
+    struct TreeNode_t *n_importe   = create_user_tree_node("n'importe");    add_child_node(catalysed, n_importe);
+    struct TreeNode_t *quoi        = create_user_tree_node("quoi");         add_child_node(n_importe, quoi);
+    struct TreeNode_t *ma_qué      = create_user_tree_node("ma_qué");       add_child_node(quoi, ma_qué);
+}
+
 void on_user_tree_expander_toggled(GtkExpander *expander, gpointer user_data)
 {
     // This is a conceptual callback for when an expander is toggled
@@ -92,35 +123,7 @@ static void add_child_node (struct TreeNode_t *parent, struct TreeNode_t *child)
 
 GtkScrolledWindow *get_user_rules_tree (){
     struct TreeNode_t *tree_root   = create_user_tree_node("root");
-/*    struct TreeNode_t *move_random = create_user_tree_node("move random");  add_child_node(tree_root, move_random);
-    struct TreeNode_t *isole       = create_user_tree_node("isolated object"); add_child_node(move_random, isole);
-    struct TreeNode_t *isole_1D    = create_user_tree_node("isolated object move 1D"); add_child_node(isole, isole_1D);
-    struct TreeNode_t *isole_2D    = create_user_tree_node("isolated object move 2D"); add_child_node(isole, isole_2D);
-    struct TreeNode_t *isole_3D    = create_user_tree_node("isolated object move 3D"); add_child_node(isole, isole_3D);
-    struct TreeNode_t *translat_2D = create_user_tree_node("translation");  add_child_node(isole_2D, translat_2D);
-    struct TreeNode_t *rotat_2D    = create_user_tree_node("rotation");     add_child_node(isole_2D, rotat_2D);
-    struct TreeNode_t *rotat_X_2D  = create_user_tree_node("rotation axe X");  add_child_node(rotat_2D, rotat_X_2D);
-    struct TreeNode_t *rotat_Y_2D  = create_user_tree_node("rotation axe Y");  add_child_node(rotat_2D, rotat_Y_2D);
-    struct TreeNode_t *translat_3D = create_user_tree_node("translation");  add_child_node(isole_3D, translat_3D);
-    struct TreeNode_t *rotat_3D    = create_user_tree_node("rotation");     add_child_node(isole_3D, rotat_3D);
-    struct TreeNode_t *rotat_X_3D  = create_user_tree_node("rotation axe X");  add_child_node(rotat_3D, rotat_X_3D);
-    struct TreeNode_t *rotat_Y_3D  = create_user_tree_node("rotation axe Y");  add_child_node(rotat_3D, rotat_Y_3D);
-    struct TreeNode_t *rotat_Z_3D  = create_user_tree_node("rotation axe Z");  add_child_node(rotat_3D, rotat_Z_3D);
-    struct TreeNode_t *relie       = create_user_tree_node("part of object");  add_child_node(move_random, relie);
-    struct TreeNode_t *move_determ = create_user_tree_node("move determ");  add_child_node(tree_root, move_determ);
-    struct TreeNode_t *transport   = create_user_tree_node("transport");    add_child_node(tree_root, transport);
-    struct TreeNode_t *transform   = create_user_tree_node("transform");    add_child_node(tree_root, transform);
-    struct TreeNode_t *regulate    = create_user_tree_node("regulate");     add_child_node(tree_root, regulate);
-    struct TreeNode_t *control     = create_user_tree_node("negative feedback (control)"); add_child_node(regulate, control);
-    struct TreeNode_t *enhance     = create_user_tree_node("positive feedback (enhance)"); add_child_node(regulate, enhance);
-    struct TreeNode_t *no_payload  = create_user_tree_node("free");         add_child_node(transport, no_payload);
-    struct TreeNode_t *charged     = create_user_tree_node("charged");      add_child_node(transport, charged);
-    struct TreeNode_t *spontaneous = create_user_tree_node("spontaneous");  add_child_node(transform, spontaneous);*/
-    struct TreeNode_t *transform   = create_user_tree_node("transform");    add_child_node(tree_root, transform);
-    struct TreeNode_t *catalysed   = create_user_tree_node("catalysed");    add_child_node(transform, catalysed);
-    struct TreeNode_t *n_importe   = create_user_tree_node("n'importe");    add_child_node(catalysed, n_importe);
-    struct TreeNode_t *quoi        = create_user_tree_node("quoi");         add_child_node(n_importe, quoi);
-    struct TreeNode_t *ma_qué      = create_user_tree_node("ma_qué");       add_child_node(quoi, ma_qué);
+    create_a_complex_useless_and_expensive_tree (tree_root);
 
     GtkStringList *model = gtk_string_list_new(NULL);
     gtk_string_list_append (model, tree_root->text);
@@ -151,3 +154,5 @@ GtkScrolledWindow *get_user_rules_tree (){
     gtk_widget_set_visible (GTK_WIDGET (list_view), TRUE);
   return scrolled_window;
 }
+
+