The list of selected elements of a hierarchical list is given by:
$ selectedItemPosition_l: = Selected list items ($ o.hierlist.id; $ selectedItemsPositions_la)
If I select element 5, then Shift-Click on element 7, I get in array 7, 6, 5.
Not very logical! I would have expected 5, 6, 7.
Still on the topic of selection, I would like to be able to make multiple selections.
If I take the previous example, I Cde-Click on element 9, it is added to the selection; OK.
If I shift-click on 11, my selection is reduced to 9 to 11.
Not what I expect ; it is normal behaviour on finder macOS.