SAGE 300 - BI OE reports.

I would like to be able to report on the reference field in order entry but I don't see it as a parameter to add within any of the 'standard' reports within BI (sales OE master). Does anyone know if you can add it or the best way to pull data with the reference number in it? It is not in the OE sales history either if you run directly from OE. Thanks.