@Override
 public RemComponent build(
     Node element, Orientation orientation, Stack<String> parentPath, FocusListener listener) {
   RemComponent currency = TextFieldBuilder.build(element, orientation, parentPath, listener);
   currency.setMessage("placeholder for currency: " + currency.getIdentfier());
   return currency;
 }
 @Override
 public RemComponent build(
     Node element, Orientation orientation, Stack<String> parentPath, FocusListener listener) {
   RemComponent select = TextFieldBuilder.build(element, orientation, parentPath, listener);
   select.setMessage("placeholder for selection / radio");
   return select;
 }