We would like to see an enhancement that automatically updates M value without the need of right click set distance - X and Y values auto update. It would be nice to see M value update when you add vertices or extend route lines. Also, it would be really nice to update next segment to start the M value by using last segment end point M value and auto update if I modify previous segment. We are working on developing tool right now but I feel that this should be a functionality out of the box to allow referencing segments and chose option if I want to have M value entered manually or use previous segment end point as a start of the next line segment.