To modify an existing object, use the methods and properties associated with that object. If you modify a visible property of a graphic object, use the Update method to redraw the object on screen.
About Mirroring Objects (VBA/ActiveX)
Mirroring creates a mirror image copy of an object around an axis or mirror line. You can mirror all drawing objects.
About Scaling Objects (VBA/ActiveX)
You scale an object by specifying a base point and a length, which is used as a scale factor based on the current drawing units. You can scale all the drawing objects, as well as attribute reference objects.
About Extending and Trimming Objects (VBA/ActiveX)
You can change the angle of arcs and you can change the length of open lines, arcs, open polylines, elliptical arcs, and open splines. The results are similar to both extending and trimming objects.
About Exploding Objects (VBA/ActiveX)
Exploding objects converts the objects from single objects to their constituent parts but has no visible effect.
About Editing Polylines (VBA/ActiveX)
2D and 3D polylines, rectangles, polygons, and 3D polygon meshes are all polyline variants and are edited in the same way.