Before I discovered Yate, I used to use Amvidia's "Tag Editor".

One of the things that's caught me out a couple of times in Yate, & which I really miss, is the fact that Tag Editor would highlight anything that fell into the criteria of the intended edit & I could see at a glance whether what I was about to do was what I intended. (As can be seen from the screenshot, where the "find & replace" I'm about to do is highlighted.)

Yate doesn't seem to have a good incremental undo feature & many times I've had to revert to the initial editing state & do everything again rather than being able to take one step back to before the mistake.

Yesterday I removed some unwanted roman numerals only to find that it had removed capital "I"s from all over the place! Obviously that was me being an idiot, but I was unable to simple "undo" that move & refine my search.

Had the intended effect of the change been highlighted, I would've spotted it & refined my criteria before committing.

Just a thought, like. Incremental undos would work just as well.