I do not know of a way to copy objects to new layers and retain their properties unless that have all been set to something that is not "by Layer". If...

Whoops, wrong post.

I do not know of a way to copy objects to new layers and retain their properties unless that have all been set to something that is not "by Layer". I...

As I recall, the feature you are looking for is under the Surface menu. When you create the contours you need to save a .tin file. Then under Surfac...