Now more Pro features are available for Lite users, if they register they site and get a free license key.
To activate all features in Lite, you will need Swift Performance Extra plugin.
You need to download Swift Performance Extra plugin. You can download it from the e-mail what you get when you register your site, or from the plugin dashboard.
Go to Plugins » Add New, then click to Upload plugin button at the top.
Then select the downloaded swift-performance-extra.zip file, and click to Install, then activate it.
That’s all! You can use all included features now.