@Override
  protected void performDefaults() {

    outputFolderCombo.select(dao.getDefaultOutputFolder());

    SpreadsheetPreference sheetEntity = dao.getDefaultSpreadsheetCell();
    setText(sheetEntity);

    CustomCodePreference customEntity = dao.getDefaultCustomCode();
    setText(customEntity);

    packageCellColumnComp.setEnabled(true);
    packageCellRowComp.setEnabled(true);
  }
 private void setEnabledToUseSheet(boolean selection) {
   packageCellColumnComp.setEnabled(!selection);
   packageCellRowComp.setEnabled(!selection);
 }