AI modify

Change the model you already have with a plain-language instruction.

Modify edits the model you already have instead of starting a new one. Your instruction is turned into a list of ordinary editing operations that run through the command bus as one undoable step, so nothing here bypasses the timeline — Ctrl+Z reverts the whole change. Like Generate, it uses AI and costs one credit per run, so it needs a Pro plan (a teacher account in classrooms).

1. Select the parts you want to change — or select nothing to let it work on the whole model.
2. Open Modify and describe the change in plain language ("make the walls 3 mm", "add a hole in the lid").
3. Review the change, then keep it or undo it like any other edit.