This is a 'does this exist' question. I don't use a passcode lock for my iPhone 99% of the time. However every now and again I find myself wanted to lock it with a code. This is an arduous process which involves going to the settings, typing the code in, enabling lock, typing the code in twice again and then locking. What I'm looking for is something like an SBS toggle that locks the phone and one time enables the passcode. Does anything like this exist? Thanks in advance for all help.