Still playing with houdini, trying to make a wing (I'm very new to 3d and drawing) . As you can see in the attached file, the desing has very repetitive operations, as shown by the rows/columns with the same exact chain of operations applied to a collection of items. What I would like to do is to merge the collections (merge node ?) and then apply the operations “for each merge input”. Is there a way to retrieve the nth object of a merge node ?