We are using TD 8.0 sp2 mainly for regression tests, so i prepared requirements, that covers all functionality and test plan tree. Also created test set tree (added all needed tests to one test set), and successfully completed it.

As we have release-based testing, and functionality remains practically the same (changing only some components), its much easier to just copy test sets, because it covers same requirements.

Is there any possibility to link new test sets with old requirements, or if i copy requirements to different release folder, how to link them with old test cases from test plan?