Place reference points on geometry to guide and anchor geometry development and to drive the shape of geometry in the conceptual design environment.
Surfaces and edges of forms can be used as an alternative work plane for placing hosted points.

To place a reference point on a line, edge, or surface
 Draw panel
Draw panel
 (Point Element).
 (Point Element). 
 Draw panel
Draw panel
 (Draw on Face).
 (Draw on Face). 
Click and drag points to reposition.