Ok I did something... not in the most elegant way, but it works.
Instead of having one menu, I have 3 options in the menu (A,B,C), I made 4 diferent copies of the same menu, one for every possible state and put it in four diferent frames, so by choosing an option from the menu, you jump around those frames. As I said, not exactly elegant way ...

I would like very much if you or someone else can explain me (in short) the concept behind that, because I'll definitely need that in the future.

Thanks!