You should only have to 'log out' from your Appeon account online and then you can then log on to PB using 'new' machine.  This assumes you have administrator rights on your Appeon account (meaning you assign licenses to PB and not someone else in your organization).

Matt

Yes, you will need to logout of our your license as shown in this video: https://www.appeon.com/developers/library/videos/license-activation-tutorial.html

If you activated your license without an Internet connection, it is more complicated process you need to follow: https://www.appeon.com/support/documents/appeon_online_help/pb2017r2/appeon_license_user_guide/ch03s02.html#_Toc483491159