docs: def saveXml(self, xml):
          """
          Saves the settings for this edit to the xml parent.
          
          :param      xparent | <xml.etree.ElementTree>
          """
          # save grouping
          xtree = ElementTree.SubElement(xml, 'tree')
          self.uiRecordTREE.saveXml(xtree)
          
          # save the query
          query = self.query()
          if query:
              query.toXml(ElementTree.SubElement(xml, 'query'))