Click the plus () button next to DIRECT MESSAGES in the left sidebar, or the New direct message button at the bottom of the app.

Start typing the name of the person or group you want to message, and select their name from the list of suggestions. You can continue adding as many message recipients as you like.

Click on the compose box, or press Tab to compose your message. You can preview your message before sending.

Click the Send () button, or use a keyboard shortcut to send your message.

Tap the Direct messages ( ) tab at the bottom of the app.

Tap the New DM button at the top of the app to message one person, or New group DM to message any number of people.

Start typing the name of the person you want to message, and select their name from the list of suggestions.

(if sending a group DM) Continue adding as many message recipients as you like. Approve by tapping the checkmark () button in the bottom right corner of the app.

Compose your message, and tap the send () button in the bottom right corner of the app.