This tool is used to list all the commands that can be undone within the 12d Model project.
The video below will show how to use the Undo List option.
Or continue down the page to see the Undo List options.
The Undo List option is found under the menu: Utilities => Edit => Undo List
If the Undo List is selected from the Edit menu, a list of all the items that are available to be undone are displayed in the Undo List panel.
This allows the user to check the undos available in the project.