Hi,
I made some sort of dressing screen in c4d. It has four similar parts. I imported the obj files in Poser, lined them up and exported the new obj to geometries. I made a phi file looking like this:

objFile :Runtime:Geometries:Mask's_Room:RS.obj

1 RS1 yzx
2 RS2 yzx
3 RS3 yzx
4 RS4 yzx

And I edit the obj file.

Now the point is that all the parts should stick together, but each part should rotate nicely over the Y-axis. So I used the joined editor. But rotating the parts results in a mesh.
What I want is: 
rotation RS1: all the other parts follow.
rotating RS2: RS1 stays and RS3 and RS4 follow
rotating RS3: RS1 and RS2 stays, RS4 follows etc.

What do i do wrong? thanks for the support!