Use this dialog box to update out-of-date local copies of project objects and project points contained in a drawing.
Lists the local objects in the drawing that are older than the latest project version. Select all objects that you want to synchronize. If you select or clear an object collection, such as Alignments, the action affects all objects in the collection.
Specifies that the object is a reference to a project object.
Specifies that the object is not synchronized with the project data.