Start Flying Pages function manually?

Hi,
Love this plugin, it really makes a massive difference on some sites.

But I wonder if there’s a function call I can use to start Flying Pages.
I know it’s always running, but I’m clearing a cache via a function in my child theme (functions.php) and wondered if I could call up Flying Pages too.

Or is this not necessary?
I’m uncertain if Flying Pages works on a site without visitor interaction, i.e. it would re-build a cache without Cron or human visit which is why I ask.