[Trinidad] how to use MenuModel for dynamic NavigationPane

[Renzo Tomaselli <re...@tecnotp.it>]

Hi all, I'm looking for info/pointers about using MenuModel for providing
runtime contents to a NavigationPane. I can't find any example, all those
provided deal with static CommandNavigationItems.  
I know well the TreeModel, I implemented a custom one for my tr:tree. But I
don't understand how a derived MenuModel could provide text and actions for
items. This seems a totally undocumented area.  
One way might be like for the tree, using the "var" to pick up data properties
for feeding the NodeStamp facet. Just a guess.  
\-- Renzo