Only admins can use the private messanger!
How do I set it so that everyone can use it?
did you give users permission to use the pm system???
http://codex.simple-press.com/codex/plugins/our-plugins/available-plugins/subscriptions/
Is there a way to send a message to everyone in a specific group?
At the moment I’m selecting all the names I want to message individually, or selecting ‘message all’ and removing the unwanted names.
do you mean usergroup? no, but its on our to do list to consider for a future version… you can email all users…