Found a small bug for you, although I'm not sure how easy it would be to fix! When you select a section of track and right click -> "length of selected track", any turnouts are seemingly being measured twice. For example, I can select just the N scale Peco turnout SL-395 and it tells me the selected section is 23.5cm. I have this particular piece of track in front of me right now and it is definitely not that long, only about half that! SCARM is obviously measuring both the straight & diverging routes together. It leads to some interesting results when you try to measure a section of track passing through a yard (that's how I found it).