it's not in the drop down, beforehand, after I selected a box from the dropdown and the window was focused on the 'box', i would be able to scroll between them (akin to pressing << >>). however, once i edited a mon, this 'box' focus would drop and i would need to manually click on one from the drop down, unable to scroll. however, right after re-selecting a box, the scrolling would return.
sorry if that didn't clarify much, i can add further depiction if needed