In the list (below) you will see your purchased licenses.

When starting the liveSHOWsoftware, a small window will appear for a few seconds, here you can click on 'license', then a request code will be displayed.
If you click on 'Activate' in the list (below) you can enter the request code from the liveSHOWsoftware and get an activation code.
Enter this activation code in the small window of the liveSHOWsoftware.