To add creases to a mesh object
Face, Vertex, or Edge.
Mesh
panel
Add
CreaseAt the Command prompt,
enter meshcrease.To remove a subobject from the selection set, Shift+click the subobject.
The specified subobjects are creased. A crease is not visible on objects that have not been smoothed (the level of smoothness = 0).
Toolbar: Smooth
Mesh