This feature is available in Ultimate edition only.
A regression suite is a set of related regression tests within a regression plan. The tests are coordinated to ensure proper functional behavior within a given segments of the application.
Select Release > Planning > Regression Planning.
Select a Plan Type from the list on the left for which you want to create a regression suite.
Click New Test Suite... to open the New Test Suite window.
Enter a Title that describes the nature of your high-level test suite. Optionally, you can enter a detailed description, assign an Owner, include Reference data, enter an Estimate, and add a Change Comment.
Click Save. The system adds your new regression suite to the list of plan types on the left, and assigns it a unique ID (RS-nnnnn).