You might be interested in watching this video…
…I tried a similar approach, but I had slightly different requirements.
I also found that the loop end is never reached, so I had to tweak positions of bindings by try-and-error.
It’s interesting o see what different kinds of things people want to do with loops,so it’ll be a hard job to create a solution that could cover all requirements.
BTW: Here’s a link to the related Trello card: