It is pro only. In the Share-it thread there's a link to the A7 features chart. 4 per vertex is pro only. All others are only 1. Both render to texture and multi-item physics have trickled down to Commercial, but BSP was the sacrifice; however looking back at some posting history, it's going to be a new, cool version of BSP that will eliminate the concave block error (eventually...I interpreted it as eventually eliminating this). ABT is the scene management for the other versions. Pro also gets the nifty sounding Distribution Manager and of course your normal resource packer and more advance MP.