Is there anyway to create, not a parallel task, but a parallel flow that included 2 or more tasks

I need to make a diagram that user will select a list of departments in the instantiation form, then there will be multiple [Task 1 -> Task 2] flows running parallel that are assigned to each department's PIC.
With my current knowledge of Bonita, I can only make 2 parallel tasks, but this mean all task 1's instances have to be finished before task 2's instances are created. But the requirement is that if a task 1's instance is submit, one task's 2 instance will immediate create to continue it.

Is there anyway to do this in Bonita?