Can a Line/Arc that was elevated from lets say a surface be changed back to its original form? Here is an example, I have my edge of pavement lines/arc elevated from my surface that was densify. I send these edge of pavement lines as a dxf for the field. well, I have to do a undefined elevation for all my lines/arc. The bad part is now my lines/arc have been changed to all straights lines with multiple segments. Is there a way to delete all the added segments to lines and change the arc that are now straight line segments back to an actual arc?