Hi everyone,I don't know if this solution has been presented yet, anyway there it is :- 1st pic : I am using a FDS NOVA Boeing CDU and a fiber optic lampp (15 euros in Bauhaus )- 2nd pic : I made a hole both in the button ( yes it is still functionnig ) and the CDU plex support- 3rd pic : this is the key witouht light - 4th pic : the same with light !advantage : simple, low cost solutiondrawback : after drilling the button the tactile feeling was not exactly the same ( a small "click" instead of a loud one ), therefore I'll check if the button is still working after lots of cycles before drilling the others.

Can you post the photos? Thanks

test :

here are the pics : ( hope this has worked : damn antivirus ! )P.S.: sorry about the quality.