Can I send a PM to a group of people?

I'd like to be able to send a PM to a group of people - sort of a 'mailing list'. The HELP topic on PMs says I can enter multiple recipients, one per line, if it's 'permitted'. It didn't seem to let me do that, though.

Is there a way to do this?

(I'm trying to set up a 'PM' mailing list to send to people in NJ to remind them of upcoming events/meetings. I'd rather do it via PM rather than via email so that people can 'sign up' for this reminder without having to give their email addresses, in consideration of their privacy)

 

I don't see a 'Carbon copy to other members' - I see recipients name and I see a pull-down box that initially says 'Other'. If I pull down the box, I see 'Other', then a dashed line, then the names of the people in my buddies list. It seems to let me choose a single name - I can't type in the box, or 'paste' into it, to get multiple lines. And if I type my own name in the Recipients box and then choose someone else in the pull-down box, the message only goes to that person without a copy to myself.