static JMenuItem intFieldMenuItem(O o, S field) {
  ret intFieldMenuItem(o, field, null);
}

static JMenuItem intFieldMenuItem(O o, S field, Runnable onSet) {
  S humanized = humanizeFormLabel(field);
  ret jMenuItem(humanizeFormLabel(field) + "...", r {
    final JTextField tf = jtextfield(get(o, field));
    showFormTitled(or2(stringOptPar(_, 'formTitle), "Set " + humanized),
      humanized + ":", tf, r {
        set(o, field, parseInt(gtt(tf)));
        callF(onSet);
      });
  });
}