FENGUI+jME Physics 2?

Hello there everyone, does anyone one how can I use FenGUI+ jME Physics 2? , the problem is that physics initiates a special display. And when I use a FENGUI  application I have to use the same display  for my main menu and for my physics application, so it doesn

Physics and FenGUI do not interfere at all. Physics does not create any special display (I assume you talk about jME Physics 2).