NxCharacter + NxOgre

I'm going to use NxCharacter from PhysX SDK in my NxOgre 1.0.22T5 based game. What would be the best method to add its actor to NxOgre for nice NxOgre collision callbacks ?

Oh and also there is:

NxController::move(constNxVec3& disp, NxU32 activeGroups, NxF32 minDist, NxU32& collisionFlags,
NxF32 sharpness=1.0f, const NxGroupsMask* groupsMask=NULL);

What intrests me is NxU32 activeGroups. Does it mean, that if I create an ActorGroup (ag) by NxOgre, then i want it to be affected in character move. Is

NxU32 activeGroups = 1 << ag->getGroupID();

what I need to do ?

edit: Come on Betajean. Please answer my questions, and don't be mad I don't use 1.5's character controller

Edit2: NVM. Got it.