Putting line-breaks in the (Mountain) Lion lock screen message On Mountain Lion, in the [Security &amp; Privacy] pane of System Preferences, you can enter a lock screen message that gets displayed on the login/lock screen.
Sometimes, you might want to put a line break or a paragraph gap there. You might think that you could do this, hence the large text box, however you can't - even if it looks like you can. Enter or Shift+Enter doesn't enter a line break. I know it's possible, because iCloud does it when you lock your computer with Find My iPhone.
Is it actually possible to enter line breaks in your lock screen message?
Press Ctrl+Enter for a new line (or Option+Enter, which seems to work as well).