examples on using gtk menues

[Giovanni Masullo <giovanni masullo icn siemens it>]

i would like to implement a "dynamical" menu system.
something like item factory, but that i can change after
that i have created the menues.
on gtk documentation i found very good examples on
using gtk menu.
but it seems to me there is some lack:
- the documentation doesnt explain how to set accelerator
    without using the item factory methods (nor how to set
    a menu item on the extreme right of the bar).
there's somebody can halp me find some more documentation
(better: examples!!) on how using gtk menus?