Event tracing can be turned on for all events in an object, or selected events.

The screen shot to the right shows the list of events as they occur. The shot below shows the detail of a selected event. Note that the event parameters appear in the detail as links if they are an object. Clicking on them presents the object in the object tree.

The number under "Inc" is the event incarnation. This is used to determine which the causal relationship of events. The first event with the same incarnation number caused the other events with that number. You can see this in the event with incarnation number 27.

Also note that the stack trace when the event occurred is shown.