"Finished this tutorial" and "Used this training material" metrics - button?

[nomadscientist]

Question 1 - if the 'Finished this tutorial' button is getting good traction (could be determined by % people using a page >10 minutes + % hitting a button, for example?) is there a way to also track how often people use materials to train others?

My solution is always more buttons, but don't know if that would work.