# Editor.MapEditor.HammerSceneEditorSession.UndoScope

```csharp
ISceneUndoScope UndoScope(string name)
```

### Parameters

- `name` (`string`)

### Returns

`ISceneUndoScope`

Declared in [Editor.MapEditor.HammerSceneEditorSession](/api/Editor.MapEditor.HammerSceneEditorSession).
Assembly: `Sandbox.Tools`.