Follow these directions:
- Click your display name in the upper-left corner of the screen
- Click All Settings
- Click Preferences
Under the heading Composer turn on or off: "Use Ctrl + Enter to send a message"
If you choose "Off", messages will be sent by pressing "Enter"If this option is turned off, use "Shift-Enter" to insert line breaks.
Watch a short video here.
Sending, Message, Line break, send message