diff --git a/source/libublsettingsui-gtk3-config-chooser.c b/source/libublsettingsui-gtk3-config-chooser.c
new file mode 100644
index 0000000..ab670f0
--- /dev/null
+++ b/source/libublsettingsui-gtk3-config-chooser.c
@@ -0,0 +1,65 @@
+#include "libublsettingsui-gtk3.h"
+
+typedef struct {
+    filechooser_window *file_chooser_window;
+    GtkFileFilter *ini_filter;
+    GtkFileFilter *yaml_filter;
+    GtkFileFilter *json_filter;
+} config_file_chooser_window;
+
+void on_config_file_chooser_destroy(GtkWidget*, config_file_chooser_window *window){
+    printf("fewrgege\n");
+}
+
+void on_config_file_chooser_accept(GtkWidget *, config_file_chooser_window *window){
+    switch (gtk_file_chooser_get_action(GTK_FILE_CHOOSER(window->file_chooser_window->MainFileChooser))){
+        case GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER:
+        case GTK_FILE_CHOOSER_ACTION_SAVE:
+        if (yon_char_is_empty(window->file_chooser_window->last_success_selection)){
+            yon_ubl_status_box_spawn(GTK_CONTAINER(window->file_chooser_window->StatusBox),yon_char_get_localised_from_lib(NOTHING_CHOSEN_LABEL),5,BACKGROUND_IMAGE_FAIL_TYPE);
+            return;
+        }
+            window->file_chooser_window->responce=GTK_RESPONSE_APPLY;
+            break;
+
+        case GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER:
+        case GTK_FILE_CHOOSER_ACTION_OPEN:
+            window->file_chooser_window->responce = GTK_RESPONSE_ACCEPT;
+            break;
+    }
+
+    char *path = NULL;
+    const char *filter_name = gtk_file_filter_get_name(gtk_file_chooser_get_filter(GTK_FILE_CHOOSER(window->file_chooser_window->MainFileChooser)));
+    if (window->file_chooser_window->last_success_selection){
+        int ext_pos = yon_char_find_last(window->file_chooser_window->last_success_selection,'.');
+        if (ext_pos==-1||strcmp(window->file_chooser_window->last_success_selection+ext_pos+1,filter_name)){
+            path = yon_char_unite(window->file_chooser_window->last_success_selection,filter_name,NULL);
+            free(window->file_chooser_window->last_success_selection);
+            window->file_chooser_window->last_success_selection = path;
+        }
+    }
+
+
+    gtk_widget_destroy(window->file_chooser_window->Window);
+    gtk_main_quit();
+}
+
+filechooser_window *yon_config_file_chooser_window_new(){
+    config_file_chooser_window *window = malloc(sizeof(config_file_chooser_window));
+    window->file_chooser_window = yon_file_chooser_window_new(GTK_FILE_CHOOSER_ACTION_SAVE);
+    window->ini_filter = gtk_file_filter_new();
+    gtk_file_filter_add_pattern(window->ini_filter,"*.ini");
+    gtk_file_filter_set_name(window->ini_filter,".ini");
+    gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(window->file_chooser_window->MainFileChooser),window->ini_filter);
+    window->yaml_filter = gtk_file_filter_new();
+    gtk_file_filter_add_pattern(window->yaml_filter,"*.yaml");
+    gtk_file_filter_set_name(window->yaml_filter,".yaml");
+    gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(window->file_chooser_window->MainFileChooser),window->yaml_filter);
+    window->json_filter = gtk_file_filter_new();
+    gtk_file_filter_add_pattern(window->json_filter,"*.json");
+    gtk_file_filter_set_name(window->json_filter,".json");
+    gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(window->file_chooser_window->MainFileChooser),window->json_filter);
+    yon_file_chooser_remove_accept_function(window->file_chooser_window);
+    g_signal_connect(G_OBJECT(window->file_chooser_window->SaveButton),"clicked",G_CALLBACK(on_config_file_chooser_accept),window);
+    return window->file_chooser_window;
+}
\ No newline at end of file
diff --git a/source/libublsettingsui-gtk3-filechooser.c b/source/libublsettingsui-gtk3-filechooser.c
index d287a79..b94a6da 100644
--- a/source/libublsettingsui-gtk3-filechooser.c
+++ b/source/libublsettingsui-gtk3-filechooser.c
@@ -87,7 +87,7 @@ void yon_file_chooser_set_root(filechooser_window *window, char *root_path){
     g_signal_connect(G_OBJECT(window->MainFileChooser),"current-folder-changed",G_CALLBACK(on_file_chooser_check_root),window);
 }
 
-void yon_file_chooser_remove_root(filechooser_window *window, char *root_path){
+void yon_file_chooser_remove_root(filechooser_window *window){
     if (!yon_char_is_empty(window->root)) free(window->root);
     window->root=NULL;
     g_signal_handlers_disconnect_by_func(G_OBJECT(window->MainFileChooser),G_CALLBACK(on_file_chooser_check_root),window);
@@ -151,4 +151,9 @@ GtkResponseType yon_file_chooser_start(filechooser_window *window){
     gtk_main();
 
     return window->responce;
+}
+
+void yon_file_chooser_remove_accept_function(filechooser_window *window){
+    g_signal_handlers_disconnect_by_func(G_OBJECT(window->SaveButton),G_CALLBACK(on_file_chooser_accept),window);
+
 }
\ No newline at end of file
diff --git a/source/libublsettingsui-gtk3.h b/source/libublsettingsui-gtk3.h
index bc7d345..2d1cd3d 100644
--- a/source/libublsettingsui-gtk3.h
+++ b/source/libublsettingsui-gtk3.h
@@ -245,11 +245,36 @@ typedef struct {
     char *root;
 } filechooser_window;
 
+/// @brief Create a file chooser window for specific action
+/// @param action File chooser's action, a mode for window to work at
+/// @return A newly allocated file chooser window;
 filechooser_window *yon_file_chooser_window_new(GtkFileChooserAction action);
+
+/// @brief Start file chooser window as dialog window
+/// @param window File chooser window to start
+/// @return GtkResponceType of pressed button 
 GtkResponseType yon_file_chooser_start(filechooser_window *window);
+
+/// @brief Sets a a new label for "Accept" button
+/// @param label 
 void yon_file_chooser_set_button_label(char *label);
+
+/// @brief Set a root for file chooser. File chooser cannot escape root folder
+/// @param window
+/// @param root_path  
 void yon_file_chooser_set_root(filechooser_window *window, char *root_path);
-void yon_file_chooser_remove_root(filechooser_window *window, char *root_path);
+
+/// @brief Remove root from file chooser.
+/// @param window 
+/// @param root_path 
+void yon_file_chooser_remove_root(filechooser_window *window);
+
+
+/// @brief Create file chooser window, configured to select supported configuration files.
+/// @return A newly allocated file chooser window;
+filechooser_window *yon_config_file_chooser_window_new();
+
+void yon_file_chooser_remove_accept_function(filechooser_window *window);
 
 
 dialog_confirmation_data *yon_confirmation_dialog_data_new();