Can restore backups made by master admin?
By default, virtual server owners can only restore backups that they made themselves. However, if this setting is changed to Yes, backups made by the master administrator (root) can also be restored by domain owners. Naturally this only applies to their own domains though.

You should only enable this option if you are sure that all your backup destinations are secure, as restoring a backup made by an un-trusted user could compromise system security.