Your site's main power users should be assigned the role of Site Administrator.
Site admins have access to high-level site settings and functions that other user roles cannot access—primarily, the Structure menu in Drupal to add or revise menus including:
Visit the User Role Definitions page to learn about all available roles for your site.
Helpful HInt
We recommend assigning the Site Administrator role to as few users as possible, since this role allows a user to make structural changes on a site.