In older versions of Acrobat, when you right click a page in page pane, it would have move which allowed you to type a number and page will move to take that position. This is important when you have more than 20 pages on a full screen. To move page 78 to page 4, just right click page 78, select move and type page number 4, Page 78 moves to page number 4. Dragging over left side up or down at times become sticky and have to do it in two or three parts.