Multiple Contour Pens on Mesh & Renovation Status awareness

[Hobbesnb]

1. It'd be nice if i could assign pens to individual contours on the mesh tool, or at least establish major and minor contours for better legibility in drawings without having to add 2D overlays.

2. It would be great if the mesh tool would allow contours to be given Existing and New Statuses, such that a Grading plan would show the new contours as solid, but those areas where the new deviate from the old as a different line type and pen.