After searching a long time in the community forum and not satisfied by the solution of using custom widget, I have found a way to use a scroll to Index in a list view. I have posted HERE.
It has to be tested ! please tell me if it works fine.
I'm posting to inform of this solution. If like me you were desesparate to find a simple solution without loosing the nocode listview design functionnality... welcome ! I'm no more desesparate ! ๐
I hope it would help ! ๐
Of course once the FF team would add to scrollList action the functionnality of scroll to index, this solution would be no more needed. one day soon I hope... (??)