Hello
I would like to customize an AIR FRANCE Caravelle created by late AFG group to make it similar to the one we have here at our club in Avignon.

I know how to make the modifications on the textures files because I'm good at Photoshop, and I tried but can't save the modifications on the livery because they say the file is locked... Being dummy at Windows, I'm looking for help. 

Modifications would be Simple : first level is modify the name and registration numbers (cabin, wings..) Second level lighten the metal texture who looks dirty, and apply a coat of white painting on 3/4 rear of the upper side of the wings.

Any volunteer ?Thanks in advance

 

IF the file is write protected (read-only) 
Right-mouseclick the file and set the file unprotected ( uncheck read-only)