Indeed for now it works only for the engine internal collision (TVScene.AdvancedCollision etc..)
I will see if it's possible to give the info to Newton engine too. It's not really hard I think since it uses UserCollision system.
Thanks!
In the meanwhile I solved this by creating invisible areas which switches the newton collision interaction on and off when the player passes (it's doable since it needs to be done when I enter a building).