Query Libraries
Queries and Save Sets
Classification
Save Sets
Each project has a save set, which manages a list of object ids to be updated in attached drawings.
Objects are not added to the save set automatically. It is up to the application to add objects using SaveSet.AddObjects().
To save objects back to an attached drawing, call AttachedDrawing.CloneBack(), AttachedDrawing.CloneBackArea(), or AttachedDrawing.CloneBackLayer().