@Nullable
  private ArrangementSectionRuleManager.ArrangementSectionRuleData extractSectionText(int i) {
    Object element = myRulesModel.getElementAt(i);
    if (element instanceof StdArrangementMatchRule) {
      assert mySectionRuleManager != null;
      return mySectionRuleManager.getSectionRuleData((StdArrangementMatchRule)element);
    }
    return null;
  }
@Nullable
  private ArrangementSectionRuleManager.ArrangementSectionRuleData extractSectionText(int i)