[ODE] Change Position and Rotation of serveral GeomObjects

[Steffen Wischmann]

I'v 3 GeomObj (eg. box1, box2, sphere3)
They all are connected to each other with HingeJoints (e.g. 
box1->box2->sphere3) like a chain perpendicular to the ground.
How could I change the Rotation of box1, that all connected Objects 
(here box2 and sphere3) also rotate and keep their Connection to each other.

Simple: How could I change the Rotation or Position of a complete Groupe 
of GeomObjects, without changing every single one, before the Simulation 
starts?

Thanx
Steffen