The Input PhysX and Output PhysX sub-operators provide a two-way data bridge between Box#2 Pro and Box#3 Pro, allowing you to fine-tune simulation properties on a per-particle basis.
Also included are updated versions of the Shape Instance operator and Age Test, with new features for advanced applications.
And last but not least, Box#2 Pro adds special event-level material-inheritance capabilities that ease and simplify the way materials work in all aspects of Particle Flow.