Topic levels?

[Lloyd Zusman <ljz@asfast.com>]

If I do an `S l' on a topic line, I get the same kind of prompt that I
get when invoking that command on a group line, to wit:

  Level (default 3):

I then change that value to, say, 2, and hit `ENTER'.  But next time I
come back to that topic and do another `S l', it shows that I'm still at
level 3.  Going through the same procedure on a group line will allow me
to change the default level ... but it appears that the `S l' command
doesn't "take" on a topic line.

Is this the way it's supposed to work?  If so, is the default level for
a given topic changed via a different procedure?

Does the level even have a meaning on a topic line?  If so, how does a
topic level interact with the levels of the individual groups within
that topic?

Thanks in advance.

-- 
 Lloyd Zusman
 ljz@asfast.com