On menu bar 2, click the triangle in the upper left corner. According to the query of Chen Hao cad official website, the parametric panel of Chen Hao CAD is located at the triangle in the upper left corner of menu bar 2. CAD(GstarCAD) is a domestic CAD design platform independently developed by Suzhou Chen Hao Software Co., Ltd., which is fully and perfectly compatible with mainstream CAD file formats, supports the secondary development of CAD software, has excellent performance, powerful functions, independent copyright security and controllability, and supports users to complete design and drawing work efficiently.