Save points and draft lines

Preview what a draft line would change in the main draft, then bring the whole of it across in one action you can undo with a save point.

Pin a name to the version you sent out — table read, first studio draft, locked white — so it stays findable in History and exportable as itself.

What a save point is, how it differs from autosave, and what the History tab lets you do with one: read it, compare it, restore it.

Parallel versions of the whole script: when to open one, how switching works, and how a draft line comes back to the main draft.

How Plot shows the difference between two versions: by scene and by line, on the page, with the same accept-or-reject reading whether a person or a skill made the change.

The History tab's timeline of everything that happened to the script: save points, milestones, incorporates, and issued revisions, in order.