Name (will change URL name and break URLs; unlike authorities, there is no history; you will need to rebuild the search index afterwards)
<%= text_field 'admin_user', 'name', :size => 60 %>

Email (you must first validate this)
<%= text_field 'admin_user', 'email', :size => 60 %>

Admin level (none or super; this is for admin features and links which are in the site proper)
<%= text_field 'admin_user', 'admin_level', :size => 60 %>

Ban text (if not blank will stop the user from filing new requests, making annotations or messaging other users; the text is used in the user/banned.rhtml template, e.g. put "Unfortunately, you have repeatedly broken our moderation policy.")
<%= text_area 'admin_user', 'ban_text', :cols => 60, :rows => 3 %>