[maemo-developers] How to set common toolbar to all Hildon Windows

[From: James Ferris]

I've seen a couple of references to "set_common_toolbar" under Hildon,
but it doesn't appear to exist for the maemo tools from what I can see.

I have an application that consists of 6 windows - only one displaying
at a time, but I'd like to have a common toolbar for all windows. Does
anyone know if this is possible, if so, how, and where I'd find the API
reference for it? 
Thank you.