[xAndrewx]

Look in server options for
staff='Account here'
To add someone it'll be
staff=excaliber7388,xAndrewx,anotheronehere
Once they're added, you'd need to find their IP Range
"/open 'account'"
The IP is in there, note it down and then add it to their rights.
"/openrights 'account'"
Once you've added an IP Range, they should be able to log onto your playerworld.