Import support reps ONLY in business unit

Import support reps ONLY in business unit

Hi,
 
I am using the latest trial version of SupportCenter Plus.
I have imported support reps from AD in business unit.
I successfully imported them, however they are added as global support reps rather than support reps only for the business unit.
 
When I even add support reps manually in business unit, they become also global support reps sitting in Admin -> Global Settings ->User and Related Settings ->Support reps. (with Administrator privileges selected).
 
How can I import/create support reps for business unit only?

                  New to ADSelfService Plus?