Your asking what the friend list is? The feature has been there forever but basically its just a list of all your friends u added to the list. Tells u if they are asleep or online. Im not sure what the greyed out ones are. I assume inactives maybe i have sum to and those r pepes who dont play anymore. Your friend list also has a maximum so at sum point you may have to delete and clean it up a bit if you want to add new people.