# Visual Extension [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [User Guide](Help%20System/GSTARCAD/2021/User%20Guide/(User%20Guide).md) → [Express tool](Help%20System/GSTARCAD/2021/User%20Guide/Express%20tool/(Express%20tool).md) → [GstarCAD Tools](Help%20System/GSTARCAD/2021/User%20Guide/Express%20tool/GstarCAD%20Tools/(GstarCAD%20Tools).md) ## Visual Extension Normally after extension, the extension effect will be displayed, but Visual Extension can display the effectin real time until you confirm the position. **Menu:** Express\>GstarCAD Tools\>Visual Extension **Command Entry:** ETT ## Operation steps: 1. Start the command. 2. Select the line that needs to be extended, the system will choose the nearest side you clicked as extension side automatically . 3. Move the cursor and the segment will extend in real time. --- Gstarsoft Co.,Ltd ## Other versions with matching text [GstarCAD 2017](../../../../2017/User%20Guide/Express%20tool/GstarCAD%20Tools/Visual%20Extension.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/User%20Guide/Express%20tool/GstarCAD%20Tools/Visual%20Extension.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/User%20Guide/Express%20tool/GstarCAD%20Tools/Visual%20Extension.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/User%20Guide/Express%20tool/GstarCAD%20Tools/Visual%20Extension.md)