This little gadget looks like a really clever way to spread the wires if it's a t-post fence. I'm not so sure about moving the clip as easily as shown in the video.

http://www.thefencebuddy.com/index.html

I'm going to have to study on fences next time I go hiking on public land.

Ultimately it seems like a sub-optimal thing to be doing with many risks. But knowing how things work is always worth learning.

I spent some time searching the internet for the t-stepper. They are just plain gone!