How do I use overlay specifications for lists in org-mode's beamer export feature?

It seems like itemize lists are automatically generated in the beamer export for org-mode. I can specify things like <only@2> for things like blocks, but it seems like I have to write out 开发者_高级运维an itemize list by hand if I want to use it with an item. For example, I expect to type this and see one list item at a time, but I don't, I see them all in one slide:

*** Test
**** one
:PROPERTIES:
:BEAMER_envargs: <only@+>
:END:
**** two
:PROPERTIES:
:BEAMER_envargs: <only@+>
:END:
**** three
:PROPERTIES:
:BEAMER_envargs: <only@+>
:END:

Also, it seems like I should be able to do:

*** Test
:PROPERTIES:
:BEAMER_envargs: [<only@+>]
:END: 
- one
- two
- three

for the same effect, but I see the whole list. This doesn't work either:

*** Test
:PROPERTIES:
:BEAMER_envargs: [<only@+>]
:END:
**** one
**** two
**** three

What am I missing here?

The org-mode Info node has some extensive examples (at least in the most up to date development version).

The following minimal example should work exactly as you wish

#+LATEX_CLASS: beamer
* Section
*** Slide
   List
   #+ATTR_BEAMER: :overlay +-
      - item 1
      - item 2

Let me know if I misunderstood your request.