List Shifter: Reverse, Rotate, Swap and ITERATE (Loop) Over Bubble Lists | Now Part of Floppy

@Jici, it works for me. It’s very simple, you just execute the action and the indices appear at the labeled outputs. In this example, List Shifter KW B holds a list of numbers 1-1000. Shifted list has been reversed. So, let’s find the index of the value “45”:

Page setup:

Click the button in run mode to see answer: