Binder selection and the Editor
That’s a pretty cool idea about automatically rewinding a few seconds. You can’t do that in Scrivener, but you can control a QuickTime media object that is in another split with Cmd-RETURN and Cmd-Opt-Shift-[ & ] to step back and forward by a few seconds. This can be done while typing, basically, without moving focus from the editor.
I think you’ll find the new and improved keywords to be more what you are looking for, but they aren’t due out for a while yet. However you should be getting a message regarding global name adjustment. When you double click on a keyword in the HUD and rename it, do you not get a message asking if you want to change all identical keywords in the project to the new string?
Again, I think you’ll like the next version. It will have a page preview function which, while not intended for layout, will give an accurate (so long as same fonts and metrics are used) count as you work, as well as a visual representation of the page, which a lot of people appreciate.