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From: weemba@beaver.ics.uci.edu (Matthew P Wiener)
Newsgroups: gnu.emacs.gnews
Subject: Re: how to mark articles as unread
Keywords: mark, unread
Message-ID: <21547@paris.ics.uci.edu>
Date: 24 Aug 89 06:07:49 GMT
References: <811@pitstop.West.Sun.COM> <21410@paris.ics.uci.edu> <1808@crdgw1.crd.ge.com>
Sender: news@paris.ics.uci.edu
Reply-To: weemba@beaver.ics.uci.edu (Matthew P Wiener)
Organization: University of California, Irvine - Dept of ICS
Lines: 7
In-reply-to: barnett@crdgw1.crd.ge.com (Bruce Barnett)

In article <1808@crdgw1.crd.ge.com>, barnett@crdgw1 (Bruce Barnett) writes:
>I would like to be able to select a region, and mark all of the items
>in the region as read.

I assume you are referring to Index Mode.  Try M-m (index-mark-region). 
--
-Matthew P Wiener (weemba@beaver.ics.uci.edu, weemba@math.berkeley.edu)