When building a template you can take advantage of the reuse capabilities that RPE Template and Document Studio provide. You can use this for any documents and traceability documents are a great candidates since they usually involve the same steps over and over again:
- Read the data from Product A and print the details you need
- In the data of Product A find the links to data in Product B
- Read the data from Product B and render it
The above is the outline of any 2 source traceability report and steps 2 and 3 are almost identical for all reports so they can be packaged as blocks to be reused as needed.
To show this I have created a document with DM and RTC data. The artifacts I use in my example are available on the Unclassified & Cross Domain Templates section of the RPE Wiki Community at #15 DM to CLM Traceability.