Blue Iris

I have the latest upgrade to v5. I just paid for the full version, for more cameras, and they sent me a new activating code. How and where do I enter this new code. When I open BI, my license shows my OLD key (1 camera).

I imagine you would need to press "Deactivate" in BI5 settings to remove the old licence to be able to apply the new licence. Does that sort it ?