Before I spend too much time, In RSD after the html is exported... Once changed, it can't be re-imported?

There's just some things I'd rather do myself but going down that rabbit hole will be tedious and time consuming if I can't re-import w/ my changes and work in the tool.

No, changes made outside the app can't be reimported. But wait, what kind of changes are we talking about? Maybe there is a way to do them withing the app after all?