code: def initializePage(self):
          
          tree = self.uiStructureTREE
          tree.blockSignals(True)
          tree.setUpdatesEnabled(False)
          self.uiStructureTREE.clear()
          xstruct = self.scaffold().structure()
          
          self._structure = xstruct
          for xentry in xstruct:
              XScaffoldElementItem(tree, xentry)
          
          tree.blockSignals(False)
          tree.setUpdatesEnabled(True)
docs: Initializes the page based on the current structure information.