Feb 2016: Importance analysis of event groups does not include events from attributes 
When you run importance analysis for Event Groups, the program shall calculate importance for e.g. Attributes using the Basic Events that have relations to the Attributes that match the ID filter for Attributes, in the Event Group. This does however not work as intended. Adding an ID filter for Attributes to an Event Group has no effect. 
Fixed in 3.3.0 
RiskSpectrum Analysis Tools (RSAT)