diff --git a/callback.c b/callback.c
index 82b655d..7a33cbe 100644
--- a/callback.c
+++ b/callback.c
@@ -8,7 +8,7 @@
 
 void ui_toggle_run_edit()
 {
-    if (get_run_edit_mode()) {g_printerr("Can't find self->main_button_run_edit !\n"); return;}
+    if (!get_run_edit_mode()) {g_printerr("Can't find self->main_button_run_edit !\n"); return;}
     printf("window.ui_toggle_run_edit()   >>>    mode = %d", get_run_edit_mode ());
     if (get_run_edit_mode()) {
           gtk_button_set_icon_name (GTK_BUTTON (get_btt_run_xor_edit()), "system-run-symbolic");
@@ -20,7 +20,7 @@ void ui_toggle_run_edit()
     printf(" > %d\n", get_run_edit_mode ());
 }
 
-void on_togglerunedit_action(GSimpleAction *action, GVariant *parameter, gpointer user_data) {
+void on_togglerunedit_action (GSimpleAction *action, GVariant *parameter, gpointer user_data) {
 //    GemGraphClientApplication *self = user_data;
 //    g_assert (GEM_GRAPH_CLIENT_IS_APPLICATION(self));
     printf("|   >>>   callback.on_togglerunedit_action()   >>>   ");
diff --git a/callback.h b/callback.h
index 587750f..bede566 100644
--- a/callback.h
+++ b/callback.h
@@ -1 +1,2 @@
-void on_togglerunedit_action(GSimpleAction *action, GVariant *parameter, gpointer user_data);
+void on_togglerunedit_action (GSimpleAction *action, GVariant *parameter, gpointer user_data);
+void ui_toggle_run_edit();
diff --git a/contain.c b/contain.c
index caa36bf..2929e6e 100644
--- a/contain.c
+++ b/contain.c
@@ -5,6 +5,7 @@
 #include "display.h"
 #include "contain.h"
 #include "texts.h"
+#include "callback.h"
 
 
 GtkWidget *get_edit_rules_page_new(){
@@ -174,7 +175,6 @@ GtkWidget *get_btt_run_xor_edit() {
 
 void window_bar(GtkWindow *window, char *title){
   GtkWidget *header_bar = gtk_header_bar_new();
-//  gtk_window_set_title (window, title);
   gtk_window_set_titlebar (window, header_bar);
 
 //  GtkWidget my_window_controls = *gtk_window_controls_new (GTK_PACK_END); //  _START
@@ -183,8 +183,12 @@ void window_bar(GtkWindow *window, char *title){
   gtk_button_set_icon_name (GTK_BUTTON (get_btt_run_xor_edit()), "document-edit-symbolic");
   gtk_button_set_icon_name (GTK_BUTTON (get_btt_run_xor_edit()), "text-editor-symbolic");
   gtk_button_set_icon_name (GTK_BUTTON (get_btt_run_xor_edit()), "system-run-symbolic");
-//  gtk_actionable_set_action_name (GTK_ACTIONABLE (get_btt_run_xor_edit()), "app.togglerunedit");
-  g_signal_connect (GTK_BUTTON (get_btt_run_xor_edit()), "clicked", G_CALLBACK (on_togglerunedit_action()), NULL);
+
+  g_signal_connect (GTK_BUTTON (get_btt_run_xor_edit()),
+                    "clicked",
+                    G_CALLBACK (on_togglerunedit_action),
+                    NULL);
+
   gtk_header_bar_pack_start (GTK_HEADER_BAR (header_bar), get_btt_run_xor_edit());
   gtk_window_set_titlebar (window, header_bar);
 
diff --git a/hot.c b/hot.c
index be8f081..387ff3c 100644
--- a/hot.c
+++ b/hot.c
@@ -18,7 +18,14 @@ void set_run_edit_mode(int prescribed_mode) {run_edit_mode_val = prescribed_mode
 int  get_run_edit_mode () {return run_edit_mode_val;}
 
 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 void add_child_node (struct TreeNode_t *parent, struct TreeNode_t *child){
+    if (parent->child) {
+        struct TreeNode_t *cur = parent->child;
+        while (cur && cur->next) {cur = cur->next;}
+        cur->next = child;
+    } else parent->child = 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);
@@ -118,14 +125,6 @@ GListModel* get_user_tree_model (GObject *item, gpointer root){
     return get_user_tree_model_child (cur);
 }
 
-static void add_child_node (struct TreeNode_t *parent, struct TreeNode_t *child){
-    if (parent->child) {
-        struct TreeNode_t *cur = parent->child;
-        while (cur && cur->next) {cur = cur->next;}
-        cur->next = child;
-    } else parent->child = child;
-}
-
 GtkScrolledWindow *get_user_rules_tree (){
     struct TreeNode_t *tree_root   = create_user_tree_node("root");
     let_us_create_a_complex_useless_and_expensive_tree (tree_root);