User story: As a user, I want to know ahead of time that I can't edit a file, so that I don't waste time doing things that won't work when I hit "publish".
We have this:
An error is shown AFTER user attempts to publish a structured data edit
We want this:
User has some kind of indication that they can't do this stuff.
- There is an obvious and understandable visual indicator and/or text that informs the user that structured data edits cannot be made to a file that is protected.