How to show buttons for each menu option?

$(document).ready(function() {
  $("#myModal").modal('show');
  $('#myModal').on('show.bs.modal', function(e) {
    $('.chosen-select').chosen();
  });
});

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css" rel="stylesheet">

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script><scriptsrc="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/chosen/1.4.2/chosen.jquery.min.js"></script><linkrel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/chosen/1.4.2/chosen.min.css">

<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
  'enter code here'
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title" id="myModalLabel">Add Group</h4>
      </div>


      <div class="modal-body">
                      <ul class="nav nav-tabs" id="myTab">
                    <li class="active"><a data-target="#home" data-toggle="tab">Opção 1</a></li>
                    <li><a data-target="#profile" data-toggle="tab">Opção 2</a></li>
                    <li><a data-target="#messages" data-toggle="tab">Opção 3</a></li>
                    <li><a data-target="#settings" data-toggle="tab">Settings</a></li>
                </ul>

                <div class="tab-content">
                    <div class="tab-pane active" id="home">
                        <br />
                        <div class="panel panel-default">
                            <div class="panel-body">
                                <button type="button" id="gerarboleto" class="btn btn-primary center-block" data-dismiss="modal">Opção 1</button>
                            </div>
                        </div>
                    </div>
                    <div class="tab-pane" id="profile">Opção 2</div>
                    <div class="tab-pane" id="messages">Opção 3</div>
                    <div class="tab-pane" id="settings">Oção 4</div>
                </div>
      </div>

      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Save changes</button>
      </div>
    </div>
  </div>
</div>