How to Add Administrator and Global Moderator

There are two ways to do this:

1.  Through Admin

Admin > Membergroups

Click the Membergroup you want to Add the member to.

Put their name in the box for "Add a member to this group"

You can click the exclamation point tooltip to do a  search for username.

2.  Through the Members Profile

Go to the members Profile > Account Related Settings.
Use the dropdown box for Primary Membergroup and change them to the Group you want them in.

nice guid hope it helps people