Layout dimensions in fractional format irrespective of any settings I can find

This has to be a simple newby question, but I can’t seem to get Layout to use decimal dimensions. In Layout under File_Document Setup_Units I have selected Decimal with 0.01 as the desired accuracy. I am trying to dimension a drawing from a Sketchup file that uses decimal measurements, and Layout only gives me fractional inch dimensions. There has to be a switch that I can’t find.

I found what I was looking for in the Dimension Style Window. But now I am not sure what the Document Setup Units setting does.

Document Setup Units has no affect except confusion.

Thanks for that!
It seemed that it might do something in addition to sowing confusion :slight_smile: