Creo Direct > Designing in the Creo Direct Environment > Working in Part Mode > Working with 3D Geometry > Editing 3D Geometry > About Editing 3D Geometry
  
About Editing 3D Geometry
You can perform the following operations on 3D geometric entities to edit them:
Move or rotate entities
Edit rounds
Modify analytic surfaces
Create offset geometry
Recognize a surface as a round or a chamfer depending on its characteristics. Such surfaces that are recognized as rounds or chamfers are removed and recreated during some of the surface editing operations.
Avoid round or a chamfer surface recognition or unrecognize a rounded surface or chamfer even though it was recognized so earlier.