If I am correct, only Bureaucrats can promote editors up to Administrators. To check to see if you can promote someone go to Special:UserRights/<username>

If it says you do not have permission to change their rights then only Bureaucrats can promote them.

Be careful if you use your username, as you can use this procedure to step down from being an administrator (remove your admin rights) on the wiki.

Community content is available under CC-BY-SA unless otherwise noted.