Hi DigitalDez,
eh... I'm not sure if understand your question correctly, but whatever you do, all the viewports are members of the same workspace... and have the same coordinates to operate with...
so if you create a Nurbs sphere or any other object, it will be on the same spot (coordinate) in all the "modelling" Viewports...
hope this made sense... 
regards
Strarup
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Alex V. U. Strarup
One mistake can ruin it all...