I used FSX opus cameras
1.- in the aircraft.cfg put the eyepoint values to 0 like this: eyepoint=0.00, 0.00, 0.00 then save it and open fsx
2.-once in FSX open FSX Opus and go to camera, once open go to virtual and move the camera to the desire view point with the arrows of the Z, X, and Y axis (Z=Longitudinal position X=Lateral Position Y=Vertical position)
3.- copy the values on the bottom of each axis and covert them to foots (Ft.) Because FSX Opus values are in meters
4.- put these values in your aircraft.cfg file eyepoint section and save it!! vuala!!! that's it!!! next time you open your FSX the eyepoint will be exactly where you want, it is ok to put just the number and 3 decimals in your aircraft.cfg, you don't need to put all of the 6 decimals that FSX Opus Camera gives you, Example: Eyepoint=47.254, 2.354, 3.568