Is it possible to link a RRC Requirement with an RSA Diagram

Fellows,

I'm using RRC to develop sw requirements (Vision, Features, Non-Functional Req, Use cases, mockups). Then, I use RSA to realize the use cases, developing for each use case a class diagram and if appliable, sequence diagrams. The problem is that we are trying to establish traceability from requirements (RRC) to its realizations (RSA), but we didn't find out how to do it. Bidirecional Traceability is a requirement for our development process.
For RRC artifacts we can "link" them with each other, e.g., link a Functional Requirement with a UseCase Description and then with its mockup. We would like to do this same thing with RSA, linking a use-case with its respectives realization diagrams. Is there any solution to this scenario?