[DiapDealer]

I don't quite follow how having them all highlighted at once would help reduce errors in your manual process.

As far as a wildcard string goes: that's what regex is for. Once you have the regex that will match all that you want to fix, you replace and find next until you're done.

This is just a wild guess, but are you trying to make Sigil's Find & Replace feature duplicate the behavior of another favorite text editor? If so, just use the Open With feature and use that favorite editor.