Wow. I ask, and you deliver! 
This looks like it will have the power to really customise prop-placement, but at the moment Iām not sure how I would use that to randomly distribute my crates in an area and stop them colliding with themselves/other entities/walls and clipping through the walls?
I think pretty soon every game being made in UE4 will feature procedural levels!!
Thx,
Daz
EDIT: Also, when will the build be out with this in mate?
Cheers
Daz