This is a Momentum indicator but on "Volume" The formula is heavily tweaked version of TSI with chance of using different averaging types, the period numbers are fixed and user don't need to type anything for them!
Please don't contact me for getting access, these tools are available for my students only. These are part of my "methodology" that I teach. The English version of the website and learning material is under development and I will announce it under each related script when they are ready so that those who are interested can participate in the course.