Once again, how do I limit comments in timeline?

I asked this once before and did not get an answer.  The timeline has problems.  One of them is that the whole bleeding comment is posted to the timeline.  All that is needed is an excerpt.  However, I can not seem to find where I can limit the comment length.  Again, Boonex, run a real social site so you can see these little annoyances.  If someone leaves a 20 paragraph comment; I don't want it showing up on the timeline in full.  Just a sentence or two is fine; just enough to let the members know the gist of it.

Just point me where I need to go look; at least give me that.

 then why start a new topic

Because I can?  So people can ask me why?

So the timeline and the outline are part of the wall module.  When you install the wall module, in the backend you have the timeline.  Now, it would make sense that would be where you could control the timeline listings; however, that is not the case.  Now, it turned out that to control the amount of blog posts added to the timeline, you went under Blogs in the admin section.  There does not appear to be anywhere in the admin section that controls how much of a comment gets posted.

I am guessing that the wall module is simply pulling out the comments from the database in full and dumping it into the timeline.  Of course I have already looked through the code to see if I could figure out how it is adding the comments.  One problem is that this may be done by the comment code and not the wall module, so it becomes a hunt that takes you all over the place to try and understand how this works.

That is where posting in the forum comes into play.  Perhaps there are those that understand this and could help to point the way, so that one does not keep chasing the wrong rabbit down the wrong rabbit hole; as I did with the collapsed replies.