Overview
Drawing sets provide a way for a single map to combine objects from multiple drawings. One drawing, the project drawing, can attach multiple source drawings. The source drawings, in turn, can attach other source drawings to form a tree of attached drawings.
Running a query on the attached drawings copies selected objects into the project drawing, where they can be displayed and edited. Unless an object from an attached drawing has been “queried in” it does not appear in the project drawing. See Queries and Save Sets for more details.