Hey guys - Iâm wondering if someone might have a nice way of selecting the previous value in a list - but wrapping around to the last value if you are at the front. Essentially I have an exercise with some values in a collection like: list := #($a $e $o $u). And I have an index into the list, and want to loop around from index 1, back to 4 when I hit the beginning of the list. While moving forwards is pretty easy with mod - e.g. ^list at: (index \\ list size + 1) Iâm struggling with the cleanest way to do this backwards - as the following is unreadable to me (assuming index = 1) ^list at: (index - 2 \\ list size + 1) And then I tried (which isn't bad - but still not quite right). ^list before: (list at: index) ifAbsent: [ids last]. Iâm sure there is a better way to do this - but itâs alluding me? Tim