ofEasyCam - saving cam and scene to disk


I’m working with ofEasyCam and trying to save the scene setup to disc so it loads in the state left the last time the scene was positioned with the mouse input. I can see here how to save the transformation matrix of the camera to disk http://forum.openframeworks.cc/t/ofxgrabcam-is-an-ofeasycam-replacement/7865/0 which works but the scene is offset. Am i correct that the target of the camera has also to be saved to reload the scene and viewport? If so how can I save ofNode (the camera target) to disk?

Thanks for your help

Actually ofxGrabCam does do this as per the example above, it my case it was the original orientation of the model / scene that was confusing