Hide Property details page if not registered

Hi Dam,
Can you please show me which files and the procedure to hide the property details page from the public view. When they click to view the property details, I want them to be redirected to the login page or sign up page (to create an account).
After logging in, they can then view the property details, please.

I followed this thread: joomdonation.com/forum/os-property/32279...-not-registered.html
but the code is not in the current version of OS Property 2.9.7.

Many thanks and kind regards
Gideon