You can use the g flag "regular expression" just backslash your wildmatches and it will work.
I've been trying to escape wildmatches in /filter but couldn't.

Code:
//window @@ | aline @@ yes yo hello? you there | aline @@ yes yo hello! you there | filter -cwwg @@ @@ \S+ \S+ hello\? \S+ \S+


Kind Regards, blink