Meta has introduced the @everyone & /silent shortcuts, available today to people using Messenger on iOS & Android. When you start a message with @everyone, all participants in the chat will be notified.
Meta introduces Slack-like shortcuts to Messenger – 9to5mac.com
Today, Meta, Facebook’s parent company, has introduced the beginning of a series of shortcuts to its Messenger platform. Its new command system brings more fun and efficiency to your messages. . Two shortcuts are available today on both iOS and Android: @everyone and /silent. Both are meant to spice up your Messenger group chat experience. .
Link: Meta introduces Slack-like shortcuts to Messenger
via 9to5mac.com