Objects in a class can be copied and pasted from one drawing to another, even if the destination drawing does not contain the same class as the original drawing. The program automatically creates a new class in the destination drawing and transfers all of the class information from the source drawing. If the destination drawing already has a class with the same name as the source drawing, only the object information is pasted. All of the class information for the destination drawing’s class remains unchanged.
When you paste objects that could become invisible due to class visibility settings, specify whether the invisible classes should be made visible so that the pasted objects can be seen.