diff --git a/libublsettingsui-gtk3-config-window.glade b/libublsettingsui-gtk3-config-window.glade
index df65feb..1adaf1f 100644
--- a/libublsettingsui-gtk3-config-window.glade
+++ b/libublsettingsui-gtk3-config-window.glade
@@ -7,7 +7,6 @@
     <property name="width-request">450</property>
     <property name="height-request">200</property>
     <property name="can-focus">False</property>
-    <property name="modal">True</property>
     <property name="icon-name">com.ublinux.libublsettingsui-gtk3</property>
     <property name="type-hint">dialog</property>
     <child>
diff --git a/source/libublsettingsui-gtk3-config-window.c b/source/libublsettingsui-gtk3-config-window.c
index 2ca27a6..ae12e42 100644
--- a/source/libublsettingsui-gtk3-config-window.c
+++ b/source/libublsettingsui-gtk3-config-window.c
@@ -36,6 +36,7 @@ typedef struct yon_configuration_parameters {
     dictionary_fields(yon_configuration_parameters);
     char *label;
     char *value;
+    GCallback func;
     enum CONFIGURATION_PARAMETER_TYPE type;
 } yon_configuration_parameters;
 
@@ -51,6 +52,8 @@ yon_configuration_entry_parameter *yon_configuration_entry_parameter_new(char *i
     return parameter;
 }
 
+yon_configuration_parameters *__yon_settings_parameters = NULL;
+
 yon_configuration_combo_parameter *yon_configuration_combo_box_parameter_new(char *id, char *label_text, config_str parameters){
     yon_configuration_combo_parameter *parameter = malloc(sizeof(yon_configuration_combo_parameter));
     parameter->Box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL,5);
@@ -70,6 +73,12 @@ yon_configuration_combo_parameter *yon_configuration_combo_box_parameter_new(cha
         gtk_combo_box_set_active(GTK_COMBO_BOX(parameter->ComboBox),0);
     }
     g_signal_connect(G_OBJECT(parameter->ComboBox),"changed",G_CALLBACK(on_confuguration_combo_box_changed),id);
+    yon_configuration_parameters *target = (yon_configuration_parameters*)yon_dictionary_get((dictionary**)&__yon_settings_parameters,id);
+    if (target){
+        if (target->func){
+            g_signal_connect(G_OBJECT(parameter->ComboBox),"changed",G_CALLBACK(target->func),target->value);
+        }
+    }
     gtk_widget_show_all(parameter->Box);
     return parameter;
 }
@@ -84,8 +93,6 @@ ubl_settings_window *yon_ubl_settings_window_new(){
     return window;
 }
 
-yon_configuration_parameters *__yon_settings_parameters = NULL;
-
 
 yon_configuration_boolean_parameter *__yon_configuration_boolean_parameter_new(char *id, char *label_text){
     yon_configuration_boolean_parameter *parameter = malloc(sizeof(yon_configuration_boolean_parameter));
@@ -109,6 +116,7 @@ yon_configuration_parameters *yon_configuration_parameter_new()
     dict->prev = NULL;
     dict->data = NULL;
     dict->value = NULL;
+    dict->func = NULL;
     dict->first = (struct yon_configuration_parameters*)dict;
     dict->data_type = DICTIONARY_OTHER_TYPE;
     return dict;
@@ -123,6 +131,7 @@ yon_configuration_parameters *yon_configuration_parameter_append(yon_configurati
     targetdict->next->data_type = DICTIONARY_OTHER_TYPE;
     targetdict->next->data = NULL;
     targetdict->next->value = NULL;
+    targetdict->next->func = NULL;
     return targetdict->next;
 }
 
@@ -202,19 +211,19 @@ void __yon_on_boolean_parameter_toggled(GtkToggleButton *self ,char *id){
 void on_confuguration_combo_box_changed(GtkComboBox *self, char *id){
     yon_configuration_parameters *cur = (yon_configuration_parameters*)yon_dictionary_get((dictionary**)&__yon_settings_parameters,id);
     if (cur){
-        cur->value = yon_char_new((char*)gtk_combo_box_get_active_id(self));
+        char *cur_value = yon_char_new((char*)gtk_combo_box_get_active_id(self));
         if (yon_window_config_check_init()){
-            yon_window_config_add_instant_parameter(id,"settings",cur->value,YON_TYPE_STRING);
+            yon_window_config_add_instant_parameter(id,"settings",cur_value,YON_TYPE_STRING);
         }
     }
 }
 
 //init section
 
-void yon_configuration_window_add_combo_box_parameter(enum CONFIGURATION_PARAMETER_TYPE type, char *id, char *label,...){
+void yon_configuration_window_add_combo_box_parameter(enum CONFIGURATION_PARAMETER_TYPE type, char *id, char *label, GCallback func, gpointer data,...){
         yon_configuration_parameter_add_or_create_if_exists_with_data(__yon_settings_parameters,id,label);
         va_list args;
-        va_start(args,label);
+        va_start(args,data);
         char *cur=NULL;
         int size=0;
         config_str variants = NULL;
@@ -234,6 +243,8 @@ void yon_configuration_window_add_combo_box_parameter(enum CONFIGURATION_PARAMET
 
             parameter->data = (void*)variants;
             parameter->type = CONFIGURATION_PARAMETER_COMBO_BOX;
+            parameter->func = func;
+            parameter->value = data;
         }
 
 }
diff --git a/source/libublsettingsui-gtk3.h b/source/libublsettingsui-gtk3.h
index ac56b3d..76609a0 100644
--- a/source/libublsettingsui-gtk3.h
+++ b/source/libublsettingsui-gtk3.h
@@ -261,7 +261,7 @@ enum CONFIGURATION_PARAMETER_TYPE{
 void yon_ubl_settings_window_init(GtkMenu *menu);
 void *yon_ubl_settings_window_get(char *id);
 void yon_configuration_window_add_boolean_parameter(enum CONFIGURATION_PARAMETER_TYPE type, char *id, char *label);
-void yon_configuration_window_add_combo_box_parameter(enum CONFIGURATION_PARAMETER_TYPE type, char *id, char *label,...);
+void yon_configuration_window_add_combo_box_parameter(enum CONFIGURATION_PARAMETER_TYPE type, char *id, char *label, GCallback func, gpointer data, ...);
 
 typedef struct {
     GtkWidget *window;