Finally someone answer to my questions at DAZ forum

I just copy the plugin from CS5 to CS6

Now i can render directly on a layer in Photoshop

I also can export  3d model (U3d ---this one preserve more the shaders,--- and DAE formats) from DAZStudio to 3d layers inside CS6 I can also import more 3d format (obj,3ds,etc) I continue my tests

Now i must learn multiple 3d function available in CS6 extended