Take information from community space on multiple group & assignees and put cases into official doco

Hey Andrew,

The information provided at http://confluence.atlassian.com/pages/viewpage.action?pageId=182682735

Needs to be part of our official product documentation to help those who want to achieve this functionality.

I've set this to 4.01 but if we need to push to 4.02 - just let me know.