Spell Check Functionality for UserNotes in Unified Service Desk

Hi,

I am Using Unified Service Desk 2.1 Base Package in My CRM environment.  USD supports Spell Check for User Notes Control. MSDN documentation said Language Specific Spell Check can be applied to this control. But I did not find any action like SetLanguague in my organisation. Am I missing any link.

MSDN Link I am following msdn.microsoft.com/.../dn864936.aspx