I would like to suggest the option to "Hide until forced visible by question event.:" for multiple fields at one time. Something similar to when you are creating a question event and you can select via checkbox which fields to hide or show.

This would be a huge help for when you make a copy of a Dynamic Registration module and you are wanting to only show parts of the information and not all of it. IE creating a manage profile section from a copy of the registration page.

Option #2 sounds right up the alley of what I was thinking. I think that would make for a useful implementation.