You start one-on-one and group chats the same way: by selecting New chat at the top of your chat list.
Start a one-on-one chat
Once you've selected New chat and entered the person’s name, compose your message in the box at the bottom of the chat. To open your formatting options, select Format beneath the box where you type your message.
When you're ready, select Send . This starts the chat.
You can also start a one-on-one chat from someone's profile card. Open it by clicking their picture in a channel or from a search.
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