We have already bundled rev slider plugin with theme which have extended license .
You can find the rev slider plugin file(revslider.zip) in Revolution-slider-instructions or frameworks/plugins folder .Pls import the same and activate the plugin . After activating plugin you should see “Slider Revolution” menu in wp-admin menu . And there is no separate license for rev slider . Pls ignore the rev slider activation code notice .
If you want direct support from plugin authors then only there is a need of purchasing separate license .
The plugin is fully functional with this extended license..