Mark a future task instance to success including downstream tasks using CLI

Assume, there is a DAG with ID a_dag and five tasks with IDs dummy1, dummy2, dummy3, dummy4, dummy5. We want to mark the dummy3 task and all it's downstream tasks - dummy4,dummy5 etc to success from the next DAG run. Since it's a future task instance, we can't do that in the UI. So we can use make use of CLI.

If we want to mark a future task instance to success, we can use below command. airflow run -fAIim a_dag dummy3 2020-07-11T20:00:00+00:00

It would be great if we include downstream tasks in the above command, so that we do not have to run the above command for each downstream tasks separately.