When you start the Copy/Monitor tool, choose Select Link, and then select Monitor, you can establish relationships between elements in a linked model and corresponding elements in the current project, and monitor changes to the elements in the linked model. When an element in the linked model changes, a warning alerts you.
Example: In an architectural model, use this method to monitor levels and grids in a linked structural model. When a level or grid line is moved in the structural model, a warning alerts architects.
Example: In a mechanical model, use this method to monitor levels in a linked architectural model. When a level is moved in the architectural model, a warning alerts mechanical engineers.