I can not able to use value list properly

Hello,
I make 4 railings in grasshopper, I want to connect the value list so that I can use one by one. If the final result is not as ai expected, It’s mix with other components.
I attached my file below.
Thank you!

015 Individual.gh (101.8 KB)

Hi,
HTH. I just did for 2 railing follow the same procedure and do it for all n more.

015 Individual BVR.gh (98.0 KB)

Even we don’t need brepjoin.

Cheers,
BVR

Hey BVR,

Thank you for helping me out!!