Mapping Passenger Signs to A380 Overhead

[quentcor]

Good day,
I have been trying to map Ken Mitchell's seat belts and no smoking switches to the A380 overhead, but I cannot establish the X and Y co-ordinates for any of the positions under Signs on the panel. I thought that I could perhaps position the switches in the two black rectangles under Signs. I have tried using PSP to determine the pixel numbers of the co-ordinates, both in a JPEG rendition as well as the standard BMP rendition, but these do not work,

I shall be most grateful for some help with how to make click-sensitive areas on the panel to accept the switches and how to establish the correct co-ordinates for positioning the switches.

Regards,
Quentin