Attached Link: camorbit.pz3

 

There was another hack for the orbit center problem: 

 

Just add a second set of "translate" channels at the end of the channels list of main camera (and aux camera). Be sure to change the channel names and dial names of the new channels. Now you can use the "Dolly" dials for standard pan, or the new dials for framing pan. The new channels will pan the view, too, but the camera will always orbit the center of the image frame (unless you also set the Dolly dials).

 

This used to work in Poser 4. The attached zip contains an old .pz3 demonstrating the new camera dials. I don't know if it works in newer versions, I stopped using Poser at version 4.

 

To use the new camera channels in new documents, I included them in the "preferredState" and in the "camerasAndLights" script, IIRC.