Who viewed threads or read threads

[Betclever]

Hello,

Looking for a hack like to be able to see/show people who viewed/read threads.
I had an add-on from RainDD or something like that but it gaves me php errors even after disabling all of my add-on and no solution found on third party add-on...
Same problem after reinstalling the add-on correctly.

Thanks for your help.

 

[sami simo]

Im using this for the same purpose:
https://xenforo.com/community/resources/xmwidgets-bd-widget-framework-extension.2273/