'wpsso_user_locale_show_on_front' ( $bool ) 'wpsso_user_locale_redirect_url' ( $url, $user_locale ) 'wpsso_user_locale_menu_dashicon' ( $dashicon_number, $menu_locale ) 'wpsso_user_locale_menu_title' ( $menu_title, $menu_locale ) 'wpsso_user_locale_menu_items' ( array $menu_items, $menu_locale )