You have also some info about orientation of a surface(s) in Dispersion Script(s) by Max Smirnov! ;)
http://moi3d.com/forum/index.php?webtag=MOI&msg=6486.1

https://moi3d.com/download/scripts/max/vSpray.v.1.1.2014.01.27.zip
https://moi3d.com/download/scripts/max/vSeed.v.1.2.2014.02.05.zip
https://moi3d.com/download/scripts/max/vDrop.v.1.0.2014.01.28.zip
https://moi3d.com/download/scripts/max/vOrientFast.v.1.0.2014.01.28.zip
https://moi3d.com/download/scripts/max/vOrient.v.1.0.2014.01.28.zip
https://moi3d.com/download/scripts/max/vClone.v.1.0.2014.01.26.zip



Only surface by surface!