Create Symmetry Inputs
Use the Symmetry tool to create a design variable based on symmetry directions to be considered in the Generative Design exploration.
Note: For Generative Design explorations, only one plane symmetry will be
                    considered.
            - 
                From the Design Explorer ribbon, click the
                        Symmetry tool.
                
Figure 1. 
 - 
                In the Symmetry dialog, add rows to the table for each
                    symmetry plane to be considered by completing one of the following
                    options:
                
- Click None, X, Y, or Z.
 - Click Add Row to define a symmetry plane based on the selection of a plane in the modeling window.