code: def on_select_level_name(self,event,called_by_parent=False):
          
          high_level_name=str(self.level_names.GetValue())
  
          if self.level_box.GetValue()=='sample':
              self.specimens_list=self.parent.Data_hierarchy['samples'][high_level_name]['specimens']
          elif self.level_box.GetValue()=='site':
              self.specimens_list=self.parent.Data_hierarchy['sites'][high_level_name]['specimens']
          elif self.level_box.GetValue()=='location':
              self.specimens_list=self.parent.Data_hierarchy['locations'][high_level_name]['specimens']
          elif self.level_box.GetValue()=='study':
              self.specimens_list=self.parent.Data_hierarchy['study']['this study']['specimens']
  
          if not called_by_parent:
              self.parent.level_names.SetStringSelection(high_level_name)
              self.parent.onSelect_level_name(event,True)
  
          self.specimens_list.sort(key=spec_key_func)
          self.update_editor()
docs: change this objects specimens_list to control which specimen interpretatoins are displayed in this objects logger
          @param: event -> the wx.ComboBoxEvent that triggered this function