Forgive me as this might be a really simple solution but i am not able to solve it. Is there a way to filter a list and get the index value of what has data and what does not? Here is an example list I am looking at. Not sure if it matters, but this is a Geometry.Intersect node result. Here is a screen shot of this node. I want to get the indexes of elements that intersect the structure so I can set parameters for just these.