This extension installs as a plugin. You can download the installation package as a zip file. Then use the new plugin uploader or unzip the package and FTP transfer to your plugin’s folder. Once the extension is installed, you can go to Plugins > Installed Plugins to activate.
When you purchase the extension, or it is included in your bundled subscription, you will receive a license key that provides you a year of updates to the plugin. Activating your license key will activate the the plugin to receive updates when they are released.