Sorry no time right now to make a video.If you have the template sharpener already it isn't much different than the other templates, but only you spin the fixture and tighten it up on an angle you want.
I wouldn't recommend an adjustable sharpener for anyone just getting started. It is more for advanced engravers for exploring their own ideas and custom points. In other words, the fixed templates are the way to go 99% of the time. That way we can concentrate on engraving rather than sharpening.