Metric or Imperial Units

As most of international projects use both units, Revit also allows us to do the same without using different Metric and Imperial templates.

I'm working on Metric job now, but most of the manufactures send us their equipment in Imperial units
I used the same numbers in the manufacture catalog in Imperial units and I added the symbol of the imperial unit as Revit has under project units and Revit converted the values automatically in the metric project

But to get this to work, I have to use the same unit symbol has for every unit