code: def on_hazard_exposure_bookmark_toggled(self, enabled):
          
          if enabled:
              self.bookmarks_index_changed()
          else:
              self.ok_button.setEnabled(True)
          self._populate_coordinates()
docs: Update the UI when the user toggles the bookmarks radiobutton.
  
          :param enabled: The status of the radiobutton.
          :type enabled: bool