It sits in everyday modelling, layout, lookdev, paint, rigging and animation work, beside Blender’s native undo rather than replacing it. Undo Stops Being a BulldozerSmartUndo+ adds a scoped undo layer to Blender. Ctrl+Alt+Z targets the selected object, selected objects, or the node tree under the cursor. It shows a timeline for the selected object or active tree, grouped by aspect rather than as one blind stack. Dyntopo and Multires strokes stay with Blender’s undo while active.