An administrator account for the site. Administrators have full permissions to the specific site.
Steps
Go to Admin > Security Roles.
In the role list, click/tap Add New Role Group.
Enter the group name and the description. Then click/tap Update.
Results
If this is the first custom role group, a Filter by Role Group dropdown appears at the top of the role list with the new role group and built-in role groups.
The new role group appears in the Role Group dropdown in the Edit Security Roles page.