I suggest you show the server options (including the OS) so we'll know if there are other choices, without deleting the droplet or registering again.
What I'm saying is, there should be a way that we can see the OS list *again* even after we've created the trial droplet already. thanks.
All of the OSes are listed during the trial there are no restrictions on which OS you can launch.
You won't be notified about changes to this idea.