Integrate Aha Program Increment (PI) custom field with Rally Release field

Today in Rally, following an orthodox SAFe Portfolio model, we organize our work based on Product Increment (PI) intervals that include four(4) two week sprints and on two week sprint for Innovation and planning.  Every ten weeks we hold another PI Planning session to organize the next PI.  In Rally the PI intervals are organized by Release (Rally Field).  Thus the desire to Map “Program Increment (PI)” field in Aha to “Release” field in Rally.