Enter your license into the Registration Dialog
You may click on the red badge in the top-right corner of a TotalFinder window:
Alternatively you can go through
TotalFinder Preferences /
Our licensing dialog is case-sensitive. Please make sure you copy and paste the license information exactly and without surrounding quotes.
Register and should see this happy screen if you did it right:
Thank you for registering and enjoy using TotalFinder! :-)