How to add simple history in the page

Not sure I understand what you mean. Can you explain a bit more?

I would like to add a “simple history” on the page.
In order to show the changes on the website. ??

Visualization on image below.
https://s27.postimg.org/vlwc216gj/screen.png

Ok, I understand what you mean now.

Currently I think that Simple History should be a log for logged in users only, but I’ll add this to my maybe-list and maybe in the future I will add this functionality.