The "Test mode" button on the popup should enable the Test mode by checking the Test mode checkbox, submitting the form and refreshing the page
Move the Test mode toggle next to the Merchant keys setting and disable input for those incase Test mode is activated
Add some notification nearby telling to disable the test mode in order to input the keys
When test mode is active the on-boarding popup should not be displayed when entering the page
When test mode is active we should have general notification at the top of the page pointing out that Paytrail for WooCommerce is running on test mode. The Notification should also encourage registering to our service and have a link that will trigger the on-boarding popup. Something like "Notice: Paytrail for WooCommerce is currently in test mode. To enter production mode you need to submit your Merchant ID and Key."
We need to improve the UI of the registration form: let's move the input fields to two columns and add this text above the form: "To begin the Paytrail registration process, please review the following information:"
@Taiteilija Feedback on the first version: