limit to threads with certain number of messages

[Steve Schmerler]

Hello

Is there a way to limit to threads that have only a certain number of
messages in it, something like ~(~M >10). I found no pattern modifier to
do that. The only related thread I could dig out is

http://thread.gmane.org/gmane.mail.mutt.user/18902/focus=19085

Thanks for any hints.

best,
Steve