Edit size of imported plant layout .dwg

Hello, 

 

A customer has imported a dwg file of their factory from a converted image of their factory from Visio 

 

The size of the factory layout currently is 100mm, editing the footprint increase the size of the footprint area but not the size of the layout features (walls, robot areas, etc)

 

Can you possibly assist in this, assume its a simple button push we have missed

 

Thank you