Today, this blog post is not about a DirectSmile feature, but an InDesign option. Nevertheless, it is helpful for you if you create DirectSmile documents with InDesign. As far as I know, this feature is really old, but I found out about it just recently. In case you also did not know it before, you will love it!
If you have a document with more than one layer, copy all elements of a page and paste it into a new document, all elements will be placed on Layer 1. So you would have to create new layers manually and move all elements to the corresponding layers. You can save a lot of time (and nerves) if you simply enable the option, that InDesign remembers the layers.
Step by step