Board Thread:Questions and Answers/@comment-29213986-20160722143216/@comment-30338526-20161011055504

Well, there is no way friending multiple people in one go. You need to copy, paste, enter, repeat. So, I don't see a different way of doing this unless you're friends with people on Facebook that their account is connected to their game. For that, all you'll have to do is load up friends by clicking the facebook icon.