Gaming How do you view previously receieved personal greetings in Mii Plaza?

[psvpwner]

As topic, how do I view them again?
And if it's not possible, why is there an option called "Erase Personal Greetings" under Settings (the red tool box to the far left in the Plaza)?

 

[Ryccardo]

1: You can't!
2: That option prevents sending a custom message that you typed in, when you haven't connected to that person again yet