All it takes to move a region or rearrange tracks is to click and drag to your little heart's content! On a trackpad, I would always run out of trackpad before I would reach my "drop-off" destination! This mouse has no limits unless, of course, you run out of literal desk space.
*click, drag, repeat
The little trackball in the middle is another powerful tool in navigation, especially when it comes to zooming in on a track! Just push 'option' and move that little trackball up and down or left and right to zoom in on a specific area of a region.
Anyway, that's my 'ode to the archaic Apple Mouse which is super useful to me!