# Command Alias [GstarCAD 2020](Help%20System/GSTARCAD/2020/Index.md) → [User Guide](Help%20System/GSTARCAD/2020/User%20Guide/(User%20Guide).md) → [Express tool](Help%20System/GSTARCAD/2020/User%20Guide/Express%20tool/(Express%20tool).md) → [Tools](Help%20System/GSTARCAD/2020/User%20Guide/Express%20tool/Tools/(Tools).md) ## Command Alias This function allows users to add, modify, delete command alias and shell commands. **Menu****:** Express tools\>Tools\>Command Alias **Command Entry:**ALIAS ## Operation steps: 1. Start the command and a dialog box will pop up.  2. Select commands to be deleted and click "Remove" button to delete command alias. 3. Select the command to be modified and click "Edit" button, a dialog box will pop up.  4. Click "OK" to finish editing. --- Gstarsoft Co.,Ltd ## Other versions with matching text [GstarCAD 2019](Help%20System/GSTARCAD/2019/User%20Guide/Express%20tool/Tools/Command%20Alias.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/User%20Guide/Express%20tool/Tools/Command%20Alias.md)