If you select Merge solids, the original part and the mirrored part become a single entity. When you select a face on a solid part, and clear the Merge solids check box, you can create a mirrored body that is attached to the original body, but is a separate entity. If you select Bodies to Mirror, the following Options appear: Option.To mirror an entire body in a in a single-body or multibody part: For Bodies to Mirror, select a body in the graphics area. Under Feature Scope, specify which bodies you want the feature to affect.
Under Options, select Geometry pattern.For Features to Mirror, select the feature from the FeatureManager design tree.Faces to Mirror is useful with imported models where only the faces that make up the feature were imported, and not the feature itself. To mirror faces in parts: For Faces to Mirror, in the graphics area select the faces that comprise the feature you want to mirror.
You can select features, the faces that comprise features, or a body within a single-body or multibody part.