Content restriction option is available for Olympus versions after 3.11 and located under Customize > Content restriction. It consists of 2 sections:
Under Customize > Content restriction > All pages, you can enable restricting the content of all the pages of your site from non-logged users.
Once you toggled the slider, you will be offered a set of options, which enables you to set up the links where non-logged users will be redirected if they try to reach restricted pages.
Also, there is possible to exclude pages that you don't want to hide from non-logged users anyway.
In the same way, you can restrict content for all activity pages under Customize > Content restriction > Activity pages. In this case, only the pages related to the social network will be restricted from non-logged users. The rest of the site pages will persist reachable.
As well as for the previous section, you will also be offered the same set of options, which enables you to set up the links where non-logged users will be redirected if they try to reach restricted pages.
Also, there is possible to exclude pages that you don't want to hide from non-logged users anyway.
It's highly recommended to Exclude the following pages: REGISTER, LOGIN, FORGOT PASSWORD, ACTIVATE, Terms and Privacy policy.