So let me be clear about what you're asking? As I understand it now, you're saying:

- The stalk seems to work.
- Using buttons on the stalk does all the right things, from what you can tell (can you change tracks?).
- You want to know which button on the stalk brings up the player's main menu, so that you can navigate the menu and make selections by twisting the stalk controls.

I've never used the stalk, so I don't know the answer to that question. I don't know if that's even implemented; I was under the impression that the stalk was mostly for volume and track changing and such, so it might be that this isn't implented at all, and that it was a design decision to implement it that way. Does anyone know the answer to this?