Social Proof with showing attendees

Hi all

how can i set up with buddyboss that other people see me that i will attend this meeting, like a social proof of people who will attend? for example “10 peoples will attend this meeting” or “10 friends you follow will attend this meeting” or better with Profile Photos as Thumbnails. i saw it once somewhere in a video from Events Calendar and Buddyboss, that it is possible.

Thanks for your help!