How to use Alert Variable Format resulting Value?

I'm using Log Analyzer to send over a VMware event as an alert. The Message ${N=OLM.AlertingMacros;M=OLMAlertMessage.EventMessage} has some data I need in it that I can't seem to get in any other provided variable. I was wondering if anyone has been able to use this feature in such a way? I'm lost trying to figure it out.