I am able to get it from Custom Metric Host
sample query:
get historical data from agents matching \"(.*)\|Custom Metric Process \(Virtual\)\|Custom Metric Agent \(Virtual\)\" and metrics matching \"Alerts\|(.*)\" between \"2013-11-21 09:45:00\" and \"2013-11-21 09:46:00\" with frequency of 15 seconds
Thanks
Bits