I was asked to create a custom event in Policy Center. A GuideWire employee said that I should see the GuideWire docs. I searched the documents that I had and all I could find was how to add a new event for something in Billing Center. It seemed to suggest that I should add the new event to the type list. There doesn't seem to be a type list for the other types of events that I am monitoring, so that doesn't seem to be an option.
This should be as simple as calling
.addEvent("CustomeEvent")
on any entity object.
What you probably should read is the Messaging section of the Integration Guide in the documentation. This new event - whatever you call it - has to be mentioned in Messaging part of the configuration on the particular destination and then appropriately filtered/handled in Event Fired Rules.