Ben's screenies prompted me to share this WIP of my Barra attempt:
I stupidly spent lord knows how long naming every part "Top rail North 1" "Brace South 3,4,5...." But then combined them all into 1 part so they could all be moved as a unit!
Anyway, I recently moved my SDK, and checked all the updates, to try to make the runways landable with the "concrete" parts. Then put it back where it came from, but now FSDS 3.5.1 can't find it

And when I try to change preferences, FSDS crashes
I'm going to try a reinstall.