Its yer choice is a great development from the zen hand tutorial released last week. Depending on how you develop this, it can be used to add duration to your behaviours (in the form of reverse luring), or used to develop your impulse control further to teach your dog to wait around treats on the floor and moving objects (including wildlife!)
Part 1 of this tutorial series can be found here: https://pawbypawtraining.co.uk/tutorials/zen-hand-self-control-tutorial/