The settings that can only be edited by Collection admins are identified with a "Coll. Admin" badge.
Who gets this permission
1. The Collection owner
As defined in Collection Permissions.
2. Global Collection Admins
3. On a case by case basis
The permission can also be given to specific Users or Groups on specific collections. See the collection’s Advanced Permissions:
Where this permission is used
- Advanced Collection Settings
- Comment Feedback Options
- Collection Base URL Panel
- To display messages of sending notifications on creating/updading of Items or Comments
The underlying permission check is
$current_User->check_perm( 'blog_admin', 'edit' ).