How can I list an item so that it selects the another brep always! Right now it overlaps the selection!
Selection.gh (38.0 KB)
Your surfaces are organized as data tree branches.
Selection_2023Aug24a.gh (40.8 KB)
By the way, your invisible groups (two of them!) were troublesome and are ill-advised.
Thank you so much for the reply but this is not I what I want. I am uploading the entire script,what i want is if you select each of the item in green colored group i.e. shade of the facade and then remaining panels should be glass, I want to control that through a slider, so each time the shade selectin changes it should automatically output the remaing as glass, I am making shades in pair of two.
Selection.gh (32.6 KB)
Sounds like you don’t understand data trees 
Good luck.
I am still learning @Joseph_Oster
You joined this forum three years ago. Understanding data trees is required for proficiency in GH.