Hi John,
ADManager Plus uses the credentials configured under Domain Settings-->Edit Domain Details to perform actions in Active Directory. When creating Help Desk Technicians make sure you enable Impersonate as Admin so the technicians may inherit the privileges of the authenticated account.
Thanks & Regards
ADManager Plus Team
Toll Free:+1888-720-9500
Email: support@admanagerplus.com
ADManager Plus - Active Directory Management & Reporting Software