AR Member needs the option for the WordPress Super Admin to set the Idle Session Time. Here is how it would work:
If a member of the website leaves their computer idle for "X" amount of time, AR Member automatically logs them out of the website. The member would then have to log back into the website again. Increment options for the idle session time should be in "Minutes" and "Hours".
This is especially useful for websites and businesses that want an additional, enhanced layer of security.
Would recommend placing it in the following location: General Settings ---> Privacy and Security Options