The Breadcrumb Navigator is a small section of the Blocs user interface that displays the DOM tree structure for the selected object and its parents. The items in this navigation list can be clicked in order to select other parent objects further up the DOM tree. The Breadcrumb Navigator is useful in situations when a parent object shares the same canvas space as the child, making it difficult to select the parent.

The Breadcrumb Navigator is located at the bottom left corner of the apps main window.