------------------------
   load_dialog_action
------------------------
[BOOK_KEEPING]
last_file_path = /home/jura/linuxcnc/nc_files

-----------------------
    Load File Manager
------------------------
[BOOK_KEEPING]
last_file_path = /home/jura/linuxcnc/nc_files/hazzy.ngc

--------------------------------------------------
     qtdragon_handler.py
--------------------------------------------------

def init_preferences(self):
        if not self.w.PREFS_:
            self.add_alarm("CRITICAL - no preference file found, enable preferences in screenoptions widget")
            return
        self.last_loaded_program = self.w.PREFS_.getpref('last_file_path', None, str,'BOOK_KEEPING')