Adding or Deleting Tests in Sets, Ordering Them
As mentioned previously, you can add test cases to test sets by dragging and dropping them from the Test Plan tree in the test set editor page. You can drop several test cases or even folders of test cases. All the test cases are added to the test case list at once.
The test set cannot contain folders or information type test cases. If you drop a test case folder into the test case list then the folder is not added to the test set, but all of its child test cases are added.
The order of the test cases is important for the execution. This order must be maintained by the user who is running the test cases. The dropped test cases are initially added to the test case list in the same order as they appear in the tree. However, you can change this order as required. Individual test cases are added to the test case list exactly where you drop them. This allows you to add the new selection in between two test cases.
Those test cases which are already added to the test set are grayed out in the test case tree. This, however, does not prevent you from dragging-and-dropping the same test case again. Dropping the same test case again adds it to the new location and the previously added duplicates are automatically removed. This is an easy and effective way to reorganize the test cases in the test set.
Test cases can be removed from the list by clicking the 
button that appears when hovering over the test case in the list.
button that appears when hovering over the test case in the list.Ordering of test cases in the test case listing can be altered by dragging and dropping them upwards or downwards in the list.