I recently started working on a script that allows for batch exports via the current Datasmith Exporter plugin. It should allow options to batch scene layers in a few clicks. The intent for the script is for those that utilizes layers heavily in their Max scenes and wishes to export by layer. Below is a quick overview of the UI and breakdown.
If you want to check it out and give it a go, you can find the script Here. Feel free to let me know any bugs/wishlists here.