Layers Manager Lineweight Units

Hello:

I work almost exclusively in inch units. I have DraftSight set up with inch units wherever that option appears. Why does Layer Manager display layer lineweights in millimeters? As soon as I click on a pulldown for a layer's lineweight, the units instantly change to inches. This isn't the end of the world, but is there another setting somewhere in DraftSight to make the layer lineweights display in inches all the time?

Any help is greatly appreciated.

Thanks!