Alignment at the Line - Teaching movement with "Here" and "Heel"
So I am going through obedience with my 5.5 month old pup, and I was reading the "How to Train Retrievers Alone" book that comes with Dennis Voigt's DVD. He talks about when having a dog at the line, you need to align them properly. He mentions using "heel" to move the rear end of the dog towards you and "Here" to move the front legs towards you. I completely understand this, but how do you train this skill? Is it as simple as moving yourself, and then using the commands so the dog only moves his front or rear legs? Just wanted to hear some opinions on the matter from some experienced trainers.
Thanks -- Justin