code: def get_actions_from_items(self, items):
          
          fromcursor_act = create_action(self, text=_('Go to cursor position'),
                                         icon=ima.icon('fromcursor'),
                                         triggered=self.go_to_cursor_position)
          fullpath_act = create_action(self, text=_('Show absolute path'),
                                       toggled=self.toggle_fullpath_mode)
          fullpath_act.setChecked(self.show_fullpath)
          allfiles_act = create_action(self, text=_('Show all files'),
                                       toggled=self.toggle_show_all_files)
          allfiles_act.setChecked(self.show_all_files)
          comment_act = create_action(self, text=_('Show special comments'),
                                      toggled=self.toggle_show_comments)
          comment_act.setChecked(self.show_comments)
          group_cells_act = create_action(self, text=_('Group code cells'),
                                          toggled=self.toggle_group_cells)
          group_cells_act.setChecked(self.group_cells)
          sort_files_alphabetically_act = create_action(
              self, text=_('Sort files alphabetically'),
              toggled=self.toggle_sort_files_alphabetically)
          sort_files_alphabetically_act.setChecked(
              self.sort_files_alphabetically)
          actions = [fullpath_act, allfiles_act, group_cells_act, comment_act,
                     sort_files_alphabetically_act, fromcursor_act]
          return actions
docs: Reimplemented OneColumnTree method