State Machine Framework: C++11

Currently with QState::addTransition the following is not legal:

state1->addTransition(button, &QPushButton::clicked, state2)

I still have to use the SIGNAL macro.

I'd like to see this more along the lines of the C++11 features that are now available in QObject::connect.
Example:
http://doc.qt.io/qt-5/qobject.html#connect-4
with the PointerToMemberFunction parameter. Then the above snippet would be legal.