Creating new aircraft

Has anyone created an aircraft from scratch for FS9?

Does anyone know of anyone I can contact regarding such a topic?

What I am trying to understand is how you can create an aircraft that has working lights etc, and yet there are no light commands in the aircraft.cfg file, no relation to any fx files and no obvious texture files for the lights.

I was told it was buolt into the model - what does this mean?

GMAX a free aircraft builder is on disk one of 2004.

https://forum.flyawaysimulation.com/forum/topic/11845/here-is-complete-list-of-what-is-on-each-fs9-disk/

You'll also need panel, gauge and painting software,