This macro removes all the extra tracking text in a web URL from an email link, google tracking link, promotions etc. It makes sharing URL's in emails cleaner. Not the best for their stats and may mess up some results for maps etc.
Remove Everything After a ? in a URL Macro (v10.2)
Assuming that's your "I have no idea..." comment above the "Search" action...
"All" is the entire match to your search pattern, which in this case includes ? at the end of your search string. "1" is the first capture group in your pattern -- everything between the first ( and ) -- in this case, everything matched except the trailing ?