Adam Enhance deliberately doesn't have the ability to manage root access.
And I hope it stays that way.
Manually adding SSH Keys to each server is a time-consuming and tedious task. As a workaround, I am utilizing the Root password for SSH login, despite the security risks involved.
Adding/removing a key across many servers is annoying. Same goes with updates, server health monitoring etc. Competent server administration at that scale requires knowing tools that make this really managable.
Giving a public facing panel the ability to grant root access across the entire estate is a huge security risk. If an attacker can find an exploit in Enhance they immediately have access to all the servers.... including backups.