# Mirror Enhancement [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) <!-- help-structure:notice --> > **Source status:** This source topic has 1 recorded inherited issue(s). [Source issue details](../../Source%20Issues.md). <!-- /help-structure:notice --> ## Mirror Enhancement In GstarCAD2017 we enhance the MIRROR command adding a new option.Besides picking start and end point to define mirror axis, you can also directly select objects as mirror axis like a line, polyline, a line of block,or an external reference drawing ![Missing source image: pic/Mirror Enhancement 1.jpg](Help%20System/GSTARCAD/2021/assets/missing-source-image.svg) --- Gstarsoft Co.,Ltd ## Other versions with matching text [GstarCAD 2017](../../../2017/User%20Guide/What%27s%20new%20in%20GstarCAD%202017/Mirror%20Enhancement.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/User%20Guide/Innovative%20Features/Mirror%20Enhancement.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/User%20Guide/Innovative%20Features/Mirror%20Enhancement.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/User%20Guide/Innovative%20Features/Mirror%20Enhancement.md)