# LOCKUP [GstarCAD 2022](Help%20System/GSTARCAD/2022/Index.md) → [Innovative Features](Help%20System/GSTARCAD/2022/Innovative%20Features/(Innovative%20Features).md) Sometimes a designer sends drawings to other people, but doesn't want others to modify the drawings. The "Drawing Lock" function can turn the drawing into a whole block. You can't explode it or modify the objects of the original drawing. It is a good way to prevent others from modifying the drawing. Once the command is started, the follow dialog box will be displayed.  **Select object:** Select all the objects in the current drawing to be locked and press Enter. **Note:** Please save your drawing before using this function, because the locked drawing can't be modified.