Use model.geom(<tag>).feature(<ftag>).selection("point") to select the corners to chamfer. The default selection is empty.
Table 3-30: Valid Property/Value Pairs on | off Show selections, if selresult is on, in physics, materials, and so on; in part instances; or in 3D from a plane geometry. obj is not available in a component’s geometry. dom, bnd, and edg are not available in all features. For information about the selresult and contributeto properties, see Selections of Geometric Entities.In version 3.5a, the default was to chamfer all vertices in the input objects. The 3.5a properties angles, dist1, dist2, edges, length, and out are no longer available.