[Orgmode] Quickly Switch Between TODO States

[Wanrong Lin]

Hi,

I am trying to get the quick TODO state switching work. I put the 
following line as in the online manual in my org file

#+SEQ_TODO: TODO(t) STARTED(s) WAITING(w) | DONE(d)

But when I press C-c C-c, I only see my tags in the selection window. The 
online manual does not elaborate on this much, so I wonder whether someone can 
help me out here.

Thanks a lot!

Wanrong