If you would like to know more about clicker training, I have some information about it on my website. But, this section is a work in progress so it only has the information about what it is and how it works. I don't have any examples myself. I do have few videos from other people though.
Here are a few pages to check out Positive Horse Training Methods / Equine Clicker Training Equine Learning Theory
Also, I don't really like the rope method as you or your horse can get hurt if you don't know how to do it properly.
Here is a video from youtube of someone with a different method. This method would work great with the clicker training.