How do you change the value of a List() element?

The help documentation is clear about how to add and delete (remove) an element from a List().   But, unless I'm missing something, there's no explanation on how to change the value of an element in a List() using an index.

Example:

myList = List({"Larry", "Mo", "Curly"});

myList(2) = "Shemp";     <-- this is what I want to do, change the element with index=2 (the third element) to "Shemp"

...now the list should contain "Larry", "Mo", and "Shemp"

or, something like: myList(2).set("Shemp");    <-- would be the logical counterpart to <list>.get(index)

But, those methods don't work. So, how does one change a specifically indexed element in a list?

Thank you.

Greg Malone
Santa Fe, New Mexico, US