This is the workflow to add users who have no global administrative function to the “Developers” group. The “Developers” group is only an organizational group. Members’ names’ appear in [color=#0000cc]blue[/color] in the forums and have the rank “Developer”.
1.) Go to ACP -> Users and Groups -> Manage users, lookup user.
OR
1.) Click on username in the forums and choose Administer user
2.) From the top right dropdown “Form”, choose "Groups"
3.) From the dropdown “Add user to group” choose “Developers” and click "Submit"
4.) After the page has updated, Lookup the line “Developers” from “User defined groups user is a member of” and click on “Make group default for member”