Summary pretty much says it all. The ability to export and import entire scenes in and out of iClone. In the case of Alembic it would be good to have a rider XML file that has the material relationships so material re-linking can be done via 3rd party apps. Even better would be a Reallusion script for Maya and Max that would handle scene import with material re-linking and scene export with XML which iClone would also use to auto re-link the materials on import.