...Shlomo Yona`s module. Which is very limited...
What functionality or generalisation are you particularly missing?
Except from trying to contact Shlomo and maybe Offer and ask if they are interested or even into that kind of further development, I don't see anything that could help you right now. It seems the module wasn't meant to do what you need.
Further searching CPAN for "Tree" and "Trie" finds a bunch of modules. Maybe there's a more suitable alternative for you there?
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