Custom G-code
The Custom G-code module is a full editor for G-code files. Import existing G-code, edit line by line with syntax help, sync with the 3D viewport, and use visualization modes to analyze structure and debug issues. It is the right place when your source of truth is already G-code, not a design parameter.
From other modules you can open a copy of the generated G-code here (</> in the toolbar). That always creates a new Custom G-code module and leaves the original intact. Projects can hold more than one module — use the module switcher in the toolbar to jump between them.
Hex Grid, Node Sculptor (toolpath), Fabric Sculpt, Predefined, G-code Sculptor, and SynthBlocks all support this copy-out. Mesh Sculptor and Texturize stay STL-only.
Path tools in this module (array, image mask, Z protection field, reorder from the Outline Panel) apply to the G-code text. They never overwrite the authoring module.
Where to go next: Custom G-code overview