Once you purchase from the CloudScope web site, you'll receive an email that will contain a "License key" and a "License validator".
Using this information, you should update each one of your CloudScope visuals. The license property page is found on the Visual format page.
Enter the license key and license validator in the appropriate text boxes and then save your report. The values should take effect immediately.
Note that each key is valid for a limited period of time. When your subscription renews, you'll receive a new key and validator. You should update your controls with your new keys before the license keys expire.