Pinned Points

Currently pin to an existing point/vertex, or to the midpoint between two other points.
Face and Edge point connections have been added.
You can now box-select Points
Pinned Datum Points now store their latest location to ensure proper placement if the pin reference becomes invalid by deletion or geometry change.
3D Datum Points can now be moved with the Move tool if they are not pinned.
When you Bend a face that has pinned datum points, the points follow the face at a well-chosen location.