business for plan item/tasks/Iteration Planning

I don't know when jazz have a test manager component.
So now I use jazz to manage test project.
My business questin is the following:

The Iteration Planning have some test case(plan item) which include step in description.
every test case(item plan )must run on many platforms,this mean
one plan item produce many taks .they have a same step.
team lead need to get tasks status on Iteration Planning.
how to copy comments of test case to tasks?(only write one test case)
or how to deal with this business question?