I want to merge this 2 List like this.
Use List.AddItemToEnd node with lacing longest.
Dang @Kulkul beat me to it.
and is more correct, lacing set to longest:
List.combine with a list.join as combinator would also work!
With that method you could also change some thing a little bit if you need to and you can extend it to have 3 lists as input.