[oXygen-user] Multiple Transformation Scenarios?

It looks like I need two transformation scenarios in one execution, and I'm not sure that's possible, or if there is another way to accomplish what I need. I want to execute an XProc script containing a p:xquery step. In the XQuery step the context will be whatever document I pass as the XProc source node, which is fine. But within the p:xquery step I also want to access (in let statements) documents accessed from the eXist-db datasource defined in oXygen. Such eXist datasource access normally requires an oXygen transformation scenario of its own. Can I do this? --Gary Kopp