When notification is turned on, a New Layer Notification bubble displays on the status bar every time one of the specified actions is performed, and new layers are detected in the process. You can choose to view the new layers by clicking the View Unreconciled New Layers link.
When you click the link, the Layer Properties Manager opens, and the Unreconciled New Layers filter is automatically selected. All new layers that have been added to the drawing or attached xrefs are displayed in the list view.
You can turn off layer notification but still have the layer list evaluated for new layers. Although the notification bubble does not display, you can still check for new layers by right-clicking the alert icon (
) on the status bar.