[O] multiple date_tree values possible in a single file

[Stuart McLean]

Hello, everyone

I really like the date tree hierarchy. I was wondering whether it was
possible to use
multiple date_tree hierarchies in a single file, or how one would go
about setting it up.

For example

* Items TODO
** tree 1
   :PROPERTIES:
   :DATE_TREE: t
   :END:
** tree 2
   :PROPERTIES:
   :DATE_TREE: t
   :END:

I don't think i can get this to work. Any suggestions?

Thanks,

Stuart