BuddyPress.org

Hi there,

I would like to have an individual title and meta description for each activity post.
How can I get an excerpt of the first 7 words of the activity post as title and also as meta description (in best case also the first 7 words comma separated as meta keywords)
I refer to posts like this http://www.buddyboss.com/demo/buddyboss/members/guest/activity/12317/ – in the title and meta should then appear “will this go into the photo gallery”

I found this on http://stackoverflow.com/questions/13302874/adding-custom-activity-stream-on-buddypress – does this help for getting a detailed explanation how to use it?