There are times when you need to hatch a portion of a face, so the "By Face" option will not work to create hatching. And if you need to have the hatch follow a complex edge or 2D curve, it is very tedious to have to pick points along that edge or curve to define a boundary using the "By Polygon" option. What I would like to see is an option that allows you to use either existing 2D geometry (manually created or calculated from 3D) as well as points to define the hatch boundary.
