Test Set - can you assign to multiple Testers in one Set?

Hello,

We have steps within a few Test Cases that are dependent on another User/Testers completing a step before the next step can be actioned.  For example, Step 3 is "Finance Manager approves Purchase Requisition" and Step 4 is "Finance Officer receives a notification that Finance Manager has approved the Purchase Requisition and a P/O has been generated".
Is there a way to assign specific Steps within a Test Case to different Testers?
Or, is there a way to assign Test Cases within a Test et to multiple Testers?

Many thanks

Nicole