I'm looking for some help with setting up sub-lists.  I've looked at the
manuals and find the information pretty incomplete and lacking clarity.

Who can set up sub-lists?  An owner, maintainer, etc?  At one point the
documentation says only a postmaster can set this up, but that is the only
reference to a postmaster that I've ever seen, so I'm not sure who that
would be.

Also, once I figure out who has authority to do this, do they just enter a
list name in the Distribution section of the task wizard?

Any direction that someone can offer would be appreciated.