code: public void addNewRow()
          throws EFapsException
      {
          final UIFieldSetRow row = new UIFieldSetRow(this);
          this.rows.add(row);
          for (final UIFieldSetColHeader header : getHeaders()) {
              final UIValue uiValue = UIValue
                              .get(Field.get(header.getFieldId()), Attribute.get(header.getAttrId()), null);
              final UIFieldSetValue cellSetValue = new UIFieldSetValue(getParent(), null, this, uiValue);
              row.add(cellSetValue);
          }
      }
docs: Add a new Row.
  
  @throws EFapsException on error