Manage Root's SSH Keys should be laid out more like a wizard.
Right now, entering a SSH key for ROOT is a bit nebulous. Especially for inexperienced users.
For example, you can import both a public and private key from one screen wherein you probably only need to import one.
Ideally, clicking "Insert" should result in a question:
Do you wish to import a  Public key  Private key  Both Public and Private keys
The page should then ask for only the relevant info. (ie: don't display a blank space for a public key if the user only wants to import a private key.)
Furthermore, the vague NOTE at the bottom:
"Note: You don't have to import both keys. It is perfectly acceptable to just
import a public OR private key if that is all you need on the server."
would be rendered useless. To a new user, they may be thinking "is that all I need on this server? Which one? I don't know..." (Who decides whether or not a PUBLIC or PRIVATE key is needed for this server? Even the tip is nebulous.)
Finally, once the key has been imported, the response of "The key named was imported.The key named was imported.Import failed: key file firstname.lastname@example.org_1399267125.pub already exists." is a WTF kind of experience.
The user is left wondering: "The key named WHAT was imported? The other key named WHAT was imported? Which one of those is my Public key and which one is my private? Also, if they were imported, then why did my import fail?"
(I was able to do this by attempting to re-import a key that had already been imported.)
Please fix these errors and strange vagueries.