docs: def delete_pointing(self, event):
          """Delete the currently active pointing"""
  
          if self.current is None:
              return
          for item in self.pointings[self.current]['items']:
              self.delete(item)
          self.delete(self.pointings[self.current]['label']['id'])
          del (self.pointings[self.current])
  
          self.current = None