Need to call the test cases sequentially , in load testing

Hi,

in SOAP UI  for each test case we can create a loadtest request.
If  i execute the load test by settiing secs/requests,  only that request will be executed for that number of times.

my requirement is paricular group of test cases need to be executed sequentially while load tetsing is performing .

Please advise me if anyone have idea

Thanks.