How to unblock automatic app downloads. If you block any apps from downloading online-only files and you change your mind later, to unblock them, go to your automatic file download settings.. Go to automatic file download settings

To get someone's attention in a channel conversation or a chat, @mention them. Just type @ before their name and then select them from the menu that appears.. When an @mention recipient receives a notification, selecting it takes them directly to the point in the conversation where they were mentioned.