How do I send the same message to multiple groups or people at once without copying and pasting?
Image 1. After writing your message, hold down the send arrow for a couple seconds.
Image 2. A list will be brought up of all the groups you're in.
Image 3. Select the groups you want to send the message to. A checkmark will appear when the group has been selected. Press "Send" when you're done selecting.
Image 4. Another way to do this is by sending the message to one group, selecting the sent message, and using the forwarding arrow to bring up the list of groups you're a part of.