[yucca]

I see your point, Christian. I agree that OF should work as you describe. I also think that deeper hierarchies would help with more complex projects. However, I would choose to use project management software for such complex projects; but it is also clear to me that such software is totally inappropriate to your needs. OF should be able to do what you describe.

I choose to leave high level stuff out of OF, and instead use folders to logically group projects. In my case, I'm keeping it simple, and I only have Household, Personal, Professional and Work folders. I actually like the Single-Action Task list in each folder as I perform my weekly reviews asynchronously on a per folder basis.

That said, if you use significantly more folders, I can see how a Single-Action Task container in each folder is going to be a pain; and I agree that being able to nest projects would solve this problem.