I am trying to calculate the stiffness center of a structure and for this, I need the width of the core boundary (Structure ) only, the total thickness or total width won’t help.
I have tried the Clockwork node “Compound Structural Layers”. It works but it is not very general because the index of the material layer I want will change according to the modeller using Revit. Meaning if I put it Finish  then Structure , Dynamo will show Index  as Finish  and Index  as Structure  and vice versa.
I want the Dynamo to detect the Structure  width only no matter the model I open in Revit.
Thank you in advance.