Tracking specific users' progress through html/code

I have pages of training that I use to train employees.
https://oi44.tinypic.com/30rupi1.jpg

Is there any way to track which users have seen which sections?

Let me be more specific. There are, say, 5 pages of training each with 8 tabs on content. In the attached screenshot the 8 tabs are all loaded to the same page/document and one scrolls to and from the other 4 pages by clicking the previous and next buttons on the bottom.

I want to be able to track which employee has seen which sections of training. If this isn’t possible, is there a product that allows it?

Perhaps a combination of Google Analytics Events (I currently use) and slimstat?

https://www.ads-software.com/extend/plugins/wp-slimstat/