I get the feeling it's largely vestigial, like an appendix. The only thing I ever use the entry key for is when typing titles in on successive mp3s e.g. enter, type in the name, enter, arrow up, enter ...

You can configure WeChat to make use of the Enter key to send messages, instead of adding a new line. Read on for the steps to configure this on your device. How to configure WeChat to send messages ...

Also called the "Return key," it is the keyboard key that is pressed to signal the computer to input the line of data or the command that has just been typed. The Enter key was originally the "Return ...