Another example exchange regarding that last one:
@brennen @ayjay I can’t think of a thing authors need that they can’t get from File: Save As
— Joel Alexander Dueck (@joeld) March 19, 2014@joeld indeed, we already have "undo" for that. Having a detailed history of the creation of a text is, for me, another question altogether.
— brennen (@brennen) March 19, 2014
(emphasis added)