Removing Holes: Ignore holes in the geometry.
Removing Cracks: Ignore cracks in the geometry.
Removing Faces: Ignore faces in the geometry.
Adding/Removing Constraints (Specifications): Add or remove constraints applied to vertices or curves.
Imposing Nodes (Specifications): Distribute nodes on edges.
Specifying a domain: Impose a domain for the geometry simplification step.
Modifying Local Specifications with Knowledgeware: Modify local specifications using the knowledge Formula command.