Multiple sender structure SAP PI 7.4 single stack

Hi Experts,

We are working on SAP PI 7.4 single stack. Our scenario is JMS to Proxy where sender system will be sending two different structures as explained below.

1. VDA4913 XML file which needs to transformed to DESADV IDoc format & trigger to SAP ECC via Proxy.

2. DESADV IDoc XML file which needs to passed as it is to SAP ECC via Proxy.

Please guide me on steps to perform to achieve above requirement.

Thanks,

Ramu.