# Modify [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [Express tool](Help%20System/GSTARCAD/2021/User%20Guide/Express%20tool/(Express%20tool).md) ## Topics - [Break Objects](Help%20System/GSTARCAD/2021/User%20Guide/Express%20tool/Modify/Break%20Objects.md) - [Delete Duplicate Objects](Help%20System/GSTARCAD/2021/User%20Guide/Express%20tool/Modify/Delete%20Duplicate%20Objects.md) - [Extended Offset](Help%20System/GSTARCAD/2021/User%20Guide/Express%20tool/Modify/Extended%20Offset.md) - [Move/Copy/Rotate](Help%20System/GSTARCAD/2021/User%20Guide/Express%20tool/Modify/Move-Copy-Rotate.md) - [Multiple Copy](Help%20System/GSTARCAD/2021/User%20Guide/Express%20tool/Modify/Multiple%20Copy.md) - [Multiple Pedit](Help%20System/GSTARCAD/2021/User%20Guide/Express%20tool/Modify/Multiple%20Pedit.md) - [Region Scale](Help%20System/GSTARCAD/2021/User%20Guide/Express%20tool/Modify/Region%20Scale.md) - [Trim Enhancement](Help%20System/GSTARCAD/2021/User%20Guide/Express%20tool/Modify/Trim%20Enhancement.md)