From the Licenses tab, you can see your licenses and also deactivate a license if you want to use it on a different website.
You can also see subscription data, such as when your license renews and which payment method you are using.
From this page you can also control wether or not to show account data on the websites you install the plugin on – this is handy if you do not want your clients to see your payment details.
You can upgrade your license if you need to use the plugin on more websites.