# Commands Enhancements [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [User Guide](Help%20System/GSTARCAD/2021/User%20Guide/(User%20Guide).md) → [Additional Pages](Help%20System/GSTARCAD/2021/User%20Guide/Additional%20Pages/(Additional%20Pages).md) ## Commands Enhancements [Line Enhancement](Help%20System/GSTARCAD/2021/User%20Guide/Additional%20Pages/Line%20Enhancement.md) [Polyline Enhancement](Help%20System/GSTARCAD/2021/User%20Guide/Additional%20Pages/Polyline%20Enhancement.md) [Rectangle Enhancement](Help%20System/GSTARCAD/2021/User%20Guide/Additional%20Pages/Rectangle%20Enhancements.md) [Circle Enhancement](Help%20System/GSTARCAD/2021/User%20Guide/Additional%20Pages/Circle%20Enhancement.md) [Copy Enhancement](Help%20System/GSTARCAD/2021/User%20Guide/Additional%20Pages/Copy%20Enhancement.md) [Rotate Enhancement](Help%20System/GSTARCAD/2021/User%20Guide/Additional%20Pages/Rotate%20Enhancement.md) --- Gstarsoft Co.,Ltd