Remove the Supplier Site from the Supplier Address

In R12.1.3, how do I remove a supplier site from an address record and create a separate address for removed site which is one of two assigned to current address?

Example:

Current Situation :

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Navigate to Supplier->Address book->Query one Address (ABC) and click Manage Site icon->

It have 2 Sites attached

ABC

XYZ

The Supplier site XYZ is added incorrectly for this OU.

Requirement is as below

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Navigate to Supplier->Address book->Query one Address (ABC) and click Manage Site icon->

ABC (Supplier Site to added to it )

Need to create a new Supplier site with new address

Navigate to Supplier->Address book->create a new one Address (XYZ) and click Manage Site icon->