how to add new licenses to my Primavera P6 Enterprise Project Portfolio Management?

Primavera P6 Enterprise Project Portfolio Management  the latest version

I have recently acquired 3 new licenses for my instance of how to add Primavera P6 Enterprise Project Portfolio Management, but I cannot find how to add these licenses to my environment

I already had 3 licenses working previously

But now I don't know how to add these new licenses