< So you don't really need any script
Name can be a solution but the script is more speedy as i can see all curves in one time
so I can select any as I want ;)
Here I have 3 different curves choosen randomly for flip, so no repetitive!
Combinaison are quasi infinite for a human time!

With the green point it's very easy to select any thing for flip them then obtain crazzy chains of objects! ;)
green point on the left, green point on the right are very cool infos!
Of course i must relaunch the script between each changement!