Eu tenho esse carrossel

$('#myCarousel').carousel({
  interval: 4000
})

$('.carousel .item').each(function(){
  var next = $(this).next();
  if (!next.length) {
    next = $(this).siblings(':first');
  }
  next.children(':first-child').clone().appendTo($(this));

  for (var i=0;i<2;i++) {
    next=next.next();
    if (!next.length) {
      next = $(this).siblings(':first');
    }

    next.children(':first-child').clone().appendTo($(this));
  }
});

.carousel-inner .active.left { left: -25%; }
.carousel-inner .next        { left:  25%; }
.carousel-inner .prev		 { left: -25%; }
.carousel-control 			 { width:  4%; }
.carousel-control.left,.carousel-control.right {margin-left:15px;background-image:none;}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<div class="col-md-12 text-center"><h3>Bootstrap 3 Multiple Slide Carousel</h3></div>
<div class="col-md-6 col-md-offset-3">
  <div class="carousel slide" id="myCarousel">
    <div class="carousel-inner">
      <div class="item active">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/e499e4/fff&amp;text=1" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/e477e4/fff&amp;text=2" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/eeeeee&amp;text=3" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/f4f4f4&amp;text=4" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/f566f5/333&amp;text=5" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/f477f4/fff&amp;text=6" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/eeeeee&amp;text=7" class="img-responsive"></a></div>
      </div>
      <div class="item">
        <div class="col-xs-3"><a href="#"><img src="http://placehold.it/500/fcfcfc/333&amp;text=8" class="img-responsive"></a></div>
      </div>
    </div>
    <a class="left carousel-control" href="#myCarousel" data-slide="prev"><i class="glyphicon glyphicon-chevron-left"></i></a>
    <a class="right carousel-control" href="#myCarousel" data-slide="next"><i class="glyphicon glyphicon-chevron-right"></i></a>
  </div>
</div>

https://jsfiddle.net/r5twtm22/

isso está funcionando bem.

Eu preciso mover apenas uma imagem de uma só vez. Está movendo todas as 4 imagens ..