I'm using modules Private Message, Invite and Organic Groups in Drupal Commons.

I get listed with trusted content using view and need to set private Message button for bulk operation just like the Privatemsg Bulkmail module from D6 (for which there is no D7 version yet).

How can I get the Private Message module to work with the VBO module, or any other module, in Drupal 7?

I created Email System with bulk operation via external mail system.

"User can invite friends and send email using VBO module "

But I want to send mail/message internal system like the Private Message system for bulk trusted contacts. So how can I achieve this?