Existing Functionality: Custom events can represent a very large number of actions, from the general to the specific. Without training or documentation, there's no easy way within the interface for Omniture SiteCatalyst users to know what a specific custom event represents.
Idea: Provide administrators the ability to add annotations for custom events, which would be displayed within the metrics header of report details via the '?' annotation icon. See the attached image for how its already done for some standard events such as Click-throughs. The annotations could also be referenced on the custom event within the Metric Selector window. An additional option would be for users to check a box when exporting a report for a glossary of event/metric definitions to be appended to the report.