The following methods are used to add more test cases to an existing test.
Adding additional test cases to a test is done the same way as creating the first one. First, you can record a test case or set existing sessions as a test case as described in Recording Test Case.
Select the Add Test Case option to create another test case.
To clone a selected test case, in the Managing Test Case(s) section, click the Clone Test Case on the toolbar. All sessions and test case objects will be duplicated.
Click Open a session file as a Test Case and select a Fiddler file (.saz, HTTP archive file (.har) or JMeter result file. The selected file will be imported as a new Test Case.
Tip: You verify any test case without leaving the context of the current test case that you are working with by right-clicking on the test case and selecting Verify Test Case...