This would be the ability to create a Scaffolding template that can be created with a certain field set, etc. This template would be able to be updated and when updated, would update all pages that were created using that template.
This would allow extra fields to be added to a form, etc.
Would need to handle what happens when a field with data is deleted.
We don't intend to work on this feature, due to unpopularity of this request.