For more information on manager permissions, see Understanding User Roles and Share Authorization
Use the drop-down menu to the right of the share and click
Click Authorize User, Authorize
Group, or Authorize Directory.
Search for the name of the user, group, or directory service you want to
authorize. Click Add
On the Authorizations page, select
manage to enable management of the share.
The user, group, or directory service is now authorized to create and modify shares
and users within the managed share.