Add the ability to create Triggers based on a Session Group

I would like to create a Trigger that is based on a Session Group. I think this would be beneficial for many others.

For my use case scenario, I have my Session Groups setup by Office location based on a Common Public IP. I'd like to know when an entire Session Group is offline (aka, the office is down). It's a simple warning and I realize there's other tools that might be able to accomplish this but having that feature would be really nice.