Adding gauges to the VC

Well, I think the subject speaks for itself. I've been searching for a way of doing this, but there doesn't seem to be an answer to weather it can be done. I'm not trying to add 3-d gauges, just add a radar gauge to a empty area on the panel. I have successfully replaced gauges, like placing the radar in place of the gns530, but I don';t know how to figure out where to place it, or what section of the panel.cfg file to edit.
Thanks
Thanks
