changing alternative unit system scale

[Ldemers22]

Hi, I'm new to the forum and also to draftsight 2D. I have been using Autocad for many years and for the most part find draftsight relatively easy to use. My problem is to do with the alternative unit system scale. In my company, we sometimes show the metric dimension followed by the architectural dimension. I draw one to one. I set my primary unit system to 1. In autocad I would set my alternative unit system to .03937, but in draftsight it appears to be permanently set to .0254. I can type in the number .03937, but it just changes back to .0254. Can anyone tell me what I'm doing wrong?