Private Messaging Allow All Users to Email All Users

Hello,

I am working on implementing the private messaging plugin on my website and wanted to see if there was a way to allow all users to send a message to everyone. The way it is currently setup only the admin can send an message to everyone. Is it possible to change this?

My second question, is it possible to send a message to a group of users. For example lets say I have 25 users are connected to Group 1. Is there a way that I could enter group 1 instead of entering each user individually.