Blueprint or workflow with parallel tasks?

Blueprint or workflow with parallel tasks?

Hello!

My sales process has 3 milestones. Within each milestone are a series of tasks. Now, tasks are of course inherent of Zoho CRM, but I was hoping to use the Blueprint functionality to map out the sales process end-to-end, but with transitions being parallel rather than sequential. Essentially, each series of tasks for the 3 milestones can happen in any order, just as long as all tasks are complete. The milestones must be sequential, however.

Is this do-able with native functionality? If not native, what would a solution look like?

Thanks