Having the option to create a test case and call other test cases as steps is great feature. When you include that test in test set & run and start executing it then all steps from the called tests will be automatically displayed. This means if i called on my test , 4 other tests each with 10 steps , then my test will start with over 40 steps configuration. That makes the test heavy and all of that information might be useless for some people who can understand the whole test case only from the title. In order to use that feature in best way i would suggest to add an option to expand/collapse test cases that are called in our particular test. This way everyone can decide if he wants to see that or not.