QUOTE(Falkoner)
was the 1 location just moving around super fast?
Yes, it just moves the location around a lot.
QUOTE(Falkoner)
also, did he take advantage of how location move from top left to bottom right?
Yes.
But, the give order is just left-to-right.
When units are aligned vertically, the order that they are given in is determined by their unit slot number, not by their position.
Units with higher unit slot numbers are chosen first.
StarEdit and X-tra edit reassign unit slots from top to bottom automatically, so if you're using them it's basically a bottom-to-top order when units are aligned vertically.
That's probably a little more information than you needed. =P