Unlock Each Secure System Preference & Allow All Users To Unlock

Standard 
UPDATE: The below has been superseded by the post found here. I'd also advise looking at authbuddy instead of the below

The below will untick the option System Preferences > Security > “Require Password To Unlock Each Secure Preference” & allow all users to unlock these preferences.

These preferences are:

  • Energy Saver
  • Network
  • Sharing
  • Date & Time
  • Startup Disk
  • Time Machine