Who I have the same questioned this topic

I have 2 phones on a family plan.  I would like to leave the primary but move the second phone to Google Fi.  Is there anything I need to do with my account on the Verizon side to facilitate this?  Or is it as simple as setting up with Google Fi and using the same number to start service there.  I am all payed up, account is good, no contract, and again - I am leaving my primary phone with Verizon.