I was having a iMessage conversation on my iPhone and then switched on my macbook and was greeted by a load of notification alerts showing the messages I had already received and read. These then had to be clicked on individually to remove, they didn't all disappear when clicking on the small x within the notification area box, this just removes them from within notifications, not the actual alert. Any solution? I'm wondering if I have a long text chat with someone out and about am I going to come home to potentially 50+ alerts? p.s. I know you can change the notification from alert to banner or none, but when I'm at home I want it to stay as an alert rather than disappearing and me potentially missing it until I click on the notification tray.