Originally Posted by Manichean
and the replacement string
The caveat is that I haven't tested it. When you test the regular expression in the wizard, the text from the first asterisk to the end of the footnote should be highlighted.
The replacement needs to be slightly different from that I think:
The parentheses may need to be escaped by a '\' if you get an error. I haven't tested it either, but I'm pretty sure the first won't work without the plus signs, and of course you want to wrap the footnote in some identifier.