Genesis function: need some help

[Nout]

Can somebody help me with Genesis

I need 2 functions, one to set the 4*4 Matrix of an actor and on the get the matrix of an actor without using Euler rotations etc..
Preferrably these functions directly read/write into the real actor matrix, as the should be fast (will be used by the physics engine)
So something like:
GetActorMatrix(geActor *Actor, geXForm3d *Matrix);
SetActorMatrix(geActor *Actor, geXForm3d *Matrix);

I also look for a way to read vertex + triangles of the full BSP, but excluding the models. I do not understand (yet ) how Genesis handles this

Thanks for any help on this