You can send a group text message, name it, and assign it an image to find it more easily. In a group conversation, you can call people’s attention to specific messages and even turned on iMessage, follow the onscreen instructions to start a new group.
If you only have one other person in the conversation, you need to start a new group conversation to add someone else.
To remove someone from a group conversation, swipe left on their name, then tap Remove.
You can leave a group chat if there are at least three other participants in the conversation.
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