docs: def parse_data_display(self, node):
          """
          Parses <DataDisplay>
  
          @param node: Node containing the <DataDisplay> element
          @type node: xml.etree.Element
          """
  
          if 'title' in node.lattrib:
              title = node.lattrib['title']
          else:
              self.raise_error('<DataDisplay> must have a title.')
  
          if 'dataregion' in node.lattrib:
              data_region = node.lattrib['dataregion']
          else:
              data_region = None
  
          self.current_simulation.add_data_display(DataDisplay(title, data_region))