Changing iCal information

I have just implemented a private event system where you have to be friends with someone before seeing private events (running alongside normal events) using buddypress to manage the friending / profile area.

I have grown to love the ai1ec (through a rocky love-hate relationship) and would love to continue to do so but as the site is growing I need to edit it’s behaviour slightly.

I have often wondered where the information is that changes / edits the iCal information. Firstly because under the description it simply shows a <div class='ai1ec-event-avatar alignleft timely'><img src='/wp-content/uploads/2014/06/math-jams-300x107.jpg' width='300' height='107' /></div> and now also because I would love to put a filter in to not show private events to the people who have subscribed to the calendar.

Could you please provide more information as to where these details are processed?

Being a bright spark I would have thought /wp-content/plugins/all-in-one-event-calendar/lib/iCal somewhere but not entirely sure where.

Is there something I can put in a line of code somewhere to ignore events of a certain category or with a certain meta tag?

Thanks in advance

https://www.ads-software.com/plugins/all-in-one-event-calendar/