I need a first 2 point each index
List.Drop with the list input @L2 and a value of -3.
Or List.GetItemAtIndex with the list input @L2 and the index input @L1 values of [0.1].
Or List.Transpose followed by a code block of [0…1], and then another List.Transpose node.
Or List.TakeItems with the list input @L2 and a value of 2.
Best to start a new topic, but basically it’s because you haven’t created a Revit object from it. FamilyInstance.ByGeometry, FamilyType.ByGeometry, DirectShape.ByGeometry, or similar will be required to move the content over to the other platform.