No worries dude, was just looking for a way to avoid having to have to make tiny mouse movements when trying to get bang on 100, 200, 300m etc, when if I could use the marks on the scale I could instantly set it to a 100% accurate distance in seconds. Would have been much more sensible if they'd programmed the tools to show changes in say 5m rather than 50, then we wouldn't have to make these guesses. I can't imagine real u-boat navigators just went "nearest 50m, That'll do" when plotting dead reckoning courses or intercept courses etc
