synchronize imessage
I am trying to synchronize across my IPhone, MacBook Air and IPad so that my Imessages are the same on all of them. That means that if I delete a message on my phone, it will also be deleted on my two other devices...or if I delete it on one of the other devices, it will be deleted on the other two. I think I have synchronized the iPhone and iPad; how do I also synchronize with the MacBook Air? Thanks!
iPhone XS