How do I unlock DaVinci Resolve Studio?

Hello everyone, I'm new and unfortunately fail already at the first task: How do I unlock DaVinci Resolve Studio? I tested the beta version 15 and then bought a license key. Where do I enter this? I ask for help.
Thanks and best regards from Berlin / Germany sends Janine

You have to download the Studio version from Blackmagic:

https://www.blackmagicdesign.com/support/family/davinci-resolve-and-fusion

During the installation, you have to enter the key.
You cannot turn the free version into the studio version by entering the key anywhere.

Hatti from Bonn