New functionality, where users can create the notion of a "Binder"
A Binder, when created by a user, is a custom object that can contain specific documents from any location (including multipe matters). The Binder could also contain specific folders, emails or notes across different matters and locations.
This may be a useful way to organize disparate resources into a single location, mimicking a physical 3-ring binder that might be prepared for a particular case or project.