How To Enable The "Hidden" Debug Menu? Following on from my previous question entitled "What is the function(s) of the hidden Debug menu in Disk Utility?". 

How do I enable the Debug Menu via Terminal command or otherwise, thereby increasing the functionality of Disk Utility ?
Quit Disk Utility if it's open.
Open the Terminal application in /Applications/Utilities.
Type this exact command and hit Enter key:

defaults write com.apple.DiskUtility DUDebugMenuEnabled 1
Quit the Terminal application.
Launch Disk Utility and you will have a the Debug menu.