Hi Lorena. Thank you for reading and for asking. If I rephrase your question (to validate my understanding), Do you want to limit the number of parallel call?

If so, you haven't a parameter for that. But you can create a for loop, with a i as counter and you can run in parallel up to i iterations. Then iterate on this step and call like that a bunch of parallel execution.

You can't say: When a job is finish, run the next one. You run i parallel task, when over, run the i next.

Does it answer your question?