As I said, the cr2 won't store (and DS wouldn't read if it did store) many surface settings, so if you've set your materials up ypou should either save a scene or export a cr2 and save a materials preset. What is complex about saving a scene? There are fewer dialogues than going through cr2 exporter, and if you are in a DS content dierctory you can do it by clicking on the + at the bottom of the Content palette without having to navigate to the desired folder.