- clicking on the Beta Access tile,
- browsing to the Current Beta Registrations table.
You will be able to confirm what Beta phase(s) you are currently registered for and the platform you previously selected. Selecting a new platform in the dropdown menu and clicking the CHANGE button will enable to register for a different platform.
Be aware, though, that you will not be able to change the platform once the Beta phase has started.
Of course, if you have any question or issue, don't hesitate to get in touch.