You can also fully customize the various parts of the modal.
<?php
echo $this->Modal->create(['id' => 'MyModal4']) ;
echo $this->Modal->body() ; // No header
echo $this->Modal->footer() ; // Footer with close button (default)
echo $this->Modal->end() ;
?>
<div id="MyModal4" tabindex="-1" role="dialog" aria-hidden="true" class="modal fade ">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-body ">
</div>
<div class="modal-footer ">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>