How to setup Xcode to put braces on a new line

I have seen this, to execute this on the command line. But does nor work for me.


defaults write com.apple.Xcode XCCodeSenseFormattingOptions -dict BlockSeparator "\n"


or


defaults write com.apple.dt.Xcode XCCodeSenseFormattingOptions -dict BlockSeparator "\n"


Would really appreciate your help.