Yes, I don't know if you can type it in directly in the alias window (never
tried it), but you can edit the addrbook file directly and insert an alias
that will be expanded automatically. The format looks like:
myalias: sam smith <xxxx@cac.psu.edu>,\
lovely lady <yyyyy@csvax1.ucc.i.e.,>,\
smurf@nonesuch.tamu.edu,\
y245@macadam.mpce.mq.edu.au (whoever else),\
...
Andrew Werdna <zzzz@cftnet.com>
If you post to myalias, the post will be sent to all those in the alias.
There cannot be a space after the "\" at the end of the line (some editors
will put one in). Note that the last address has no ",\" at the EOL.
Hope this helps,
-rex