Change units across an assembly

Hello All -

Here's a fun one.  We had a student tasked with creating a SW model of our laboratory.  When he did so, he chose to use the IPS or "inch, pound, second" unit system.  However, as he entered data, instead of 1 = an inch, he entered 1 = one foot.  This resulted in a universal scaling issue with the model which makes it difficult to integrate newer sub assemblies that were modeled correctly.

Is there any simple, global way to go through the model wholesale and scale it to the proper values?

SolidworksMysolidworks