Add 3rd option: "Automatically generate (and hide) the title and allow user to edit (not hidden on edit)"

Currently this module provides 2 options:
[]Automatically generate the title and hide the title field
[]Automatically generate the title if the title field is left empty

I think there should be a 3rd option to generate the title automatically, but then on subsequent edit of the node allow the user to expand a collapsed title field set and edit the node title if they have manage content permissions.

There are occasions where it makes sense to allow a user to override an automatically generated node title, and this would offer an option that would still most of the time result in an automatically generated node title.