Ability to say whether a specfic profile is swept to the next instance of the component (or next slice) as opposed to being just a patterned instance. This could be done by just giving the extrusion in Inventor a special prefix that Infraworks then recognizes and takes over (eg. SweptProfile_XXXXXXX).
Benefits: Provide a powerful new ability to users that will increase the number/type of components they can make in Infraworks.