Hello,

In order to get access to Revolution Slider templates you will have to purchase their license and activate.

As for the update, we recommend you automatic update to save all the settings and configuration. You will find alternative ways of updating here: https://xtemos.com/docs/basel/update-theme/

As for plugin update Visual Composer and Revolution slider come bundled with our theme but they can’t be activated with our purchase code. Actually, you don’t need to do this. Only in case you want to get free premium support from its author, you can purchase it from codecanyon. But it is not necessary since we will always provide you with the latest updates.

Best Regards