Define the Endpoints to be requested when user authenticates with Facebook for the first time<br>
                                  Enter each endpoint in different lines in the format <em>endpoint</em>|<em>name_of_endpoint</em>.<br>
                                  <b>For instance:</b><br>
                                  /me?fields=birthday|user_birthday<br>
                                  /me?fields=address|user_address