Newbie question: where are events stored?

I’ve recently installed the Scheduler plugin for Wordpress and was wondering where the events I create are being stored? There aren’t any new tables in my WP database and I can’t find any XML / .json files being updated either.

I’d say I’ve overlooked something here but for the life of me I can’t figure out what it is.

created events are saved into events_rec table in database.
It will be created after first scheduler or its admin panel visiting.