def METHOD_NAME(self, widget, path, col):
    if path is None:
        return
    else:
        filename, title, *_ = entries[path[0]]
        if col.get_name() == COLUMN_ROW_RESET:
            self._reset_progress_file(filename, title)
        else:
            conf.set("categorycombo", learn_category_id)
            from pychess.widgets.TaskerManager import learn_tasker
            learn_tasker.learn_combo.set_active(path[0])
            start_from(filename)