Is it possible to look up the specifics of a sketch constraint i.e. what entities are used within the constraint. I assume that the program records these details somewhere. An example is; that I have a part where sketch 1 is constrained to another part in an assembly. I wish to replace that part but use the original sketch by copy and paste. Is it possible to edit the entities on which the sketch is constrained ? This would be along the lines of the Part or Assembly "definitions document" discussed by Lew Merrick.