As far a I know it is not supported in processor.get. As an alternative you can write a custom requesthandler that handles OQL requests. See deeplink widget for a sample of a requesthandler.
BTW: will this BI reporting be available in the appstore? Most of us are waiting for something like that.
Chris de Gelder
I think it is possible to create a dataset in the modeler, and then access it through a client api in custom widgets. I never used that though, and not sure what the correct API calls are.