Most WPEP Installations do not require Cron Jobs, this tab will only show when they’re actually required.
Note : Cron Jobs may appear to be working, even if they’re not, it may take 5 minutes to 1 day ( depending on what Cron Jobs need to be executed, which depends on the features you have activated )
WPEP Cron Jobs are working
WPEP Cron Jobs are not working
WPEP Cron Jobs, how to fix
Contact your hosting provider, and ask them why the Cron Jobs are not being executed, normally it should work out of the box.