> I'm a little embarrassed, this should be a easy to do (but I found
> nothing in the on-line manual).

There is, I think in the 1.8d manual

ftp://ftp.lsoft.com/documents/listownr.manual

If not using 1.8d then del and add is all you can do, but If using 1.8d then send the
following command:

CHANGE [log in to unmask]  [log in to unmask]

the subscriber can do it her/himself by sending the following from the *0ld* address:

CHANGE LISTNAME [log in to unmask]

    . ..Cleo  [log in to unmask]
UnOfficial Listowners' Manuals/Guides/Tutorials
http://angus.interspeed.net/listowner/