Location: View>Level>Copy Entities from Levels
Use this function to copy all entities from the selected level or levels to a different level.
Open a model and click View>Level>Copy Entities from Levels. The Universal Selection Menu appears on the Conversation Bar.
Select the source levels by selecting an entity on the source level or by typing level numbers or ranges. (For information on level ranges, see View>Level>Displayed.)
Select the destination level by typing the number of the level, selecting an entity on the level, or clicking the Active button on the Conversation Bar to use the active level.