I can tell you that it doesn't exist. If you want to do something like this, there's sort of a workaround: I'd do a Find in Files with <open files> selected as the location. Then use F4 or whatever to cycle through the results, and modify each result. Unlike a normal find (F3), F4 doesn't actually select the result, so you'll need to do something like F4, F3, and then ctrl+v or whatever. You could make a macro, I guess.