User messaging limits

Hey,

I would need to limit the Users to send messages to everyone(User still should be able to send message to the admin, but not to other users/apartments) thru the bOS app internal events messaging. 

We have hotel project where the clients have started to misuse the feature by spamming jokes and memes in there - to everyone ofc, now the Hotel is asking me to turn it off but there is no option for that.

Best regards