Add status option "appear offline" on the friend list

Years pass by , and LoL only innovate , bringing always something fresh to the game. But one thing kind of remained the same : The friend list. Today , we have only some options for the status ingame , it is "Busy and online"

As the title of the topic says , some others thing could been added like the option : "Appear Offline" Cause sometimes u dont want people to know that you are online.