The fields should be relatively self explanatory, except for password, authority, and settings. You can leave settings blank and authority is the "GM level" so to speak, 0 is a normal user, 99 gives access to all GM commands. Password is a little tricky, because you need to encode your desired password twice. First to MD5 and then to BCrypt.
For example, if you want to use the password "test", you first convert it to MD5 "098F6BCD4621D373CADE4E832627B4F6" (make sure it's upper-case), and then to BCrypt "$2a$06$ekZrPFVdCJTX6UWRuPxbteNvNfysr4Nb.nE84w3aYGjn/.EuYwMk6", which is what you put into the database for the password.