Send a message
Every conversation has a composer along the bottom of the screen. Select it, type, and send.
Formatting and Markdown
Messages are plain text until you turn Markdown on. With Markdown enabled you get bold, italic,
Replies and mentions
Two ways to point at something specific: reply to a message so your answer quotes it, or mention a
Reactions
A reaction is a one-tap response to a message — useful for acknowledging something without adding
Edit, unsend, and pin
Every message has a menu of actions. What it contains depends on whether the message is yours, what it
Forward, copy, and message info
Moving a message somewhere else, taking a copy of it, and finding out who has read it.