When you click “Settings” on the plugin page or go to Settings->Goose Studio in the administration menu you end up on the following page.
To enable automatic updates you need to enter your license key in the textfield on the corresponding plugin/theme row. To make sure you have entered a correct license key you can verify it by pressing the “Verify” button.
This will check the license key against our database and tell you the status. Pressing the “Save settings” button will register your site and the corresponding license key with our servers. This will make it possible for you to have automatic updates. If you do not do this you have to delete and reupload the plugin each time there is an update.
If you do not wish to enable automatic updates use the “Do not register” checkbox. This will disable the license key verification and other checks that are run on “Save settings” clicks.