Can I save after evaluation copy expired with a new license key?

I downloaded an evaluation copy of Rhino and the 90 days expired. I have some work in an open file. I bought a license and now have a license key. Is there a way to add my license key so that I can save the work in my open file?

I can’t seem to find any way to add my license key. When I go to Settings > Licenses, there is no way to add a license key.