1. Start a Revit project, using any template. Ctrl + N.

2. Go to the BFT Tab and Account (far left).

3. Fill out the fields below to start a trial, or enter the license key on top and activate the license.

4. Restart Revit, and the template has been loaded, and the tool itself is now activated.

Possible to see when the license will expire in the account window, on the top.