[V4]Carousel more images scrolling only one

[snowchenlei]

Move one image at a time instead of one carousel-item.
first scrolle need hide 1.jpg and show 5.jpg

<div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
  <ol class="carousel-indicators">
    <li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li>
    <li data-target="#carouselExampleIndicators" data-slide-to="1"></li>
  </ol>
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img src="1.jpg" class="d-block w-25" alt="...">
      <img src="2.jpg" class="d-block w-25" alt="...">
      <img src="3.jpg" class="d-block w-25" alt="...">
      <img src="4.jpg" class="d-block w-25" alt="...">
    </div>
    <div class="carousel-item">
      <img src="2.jpg" class="d-block w-25" alt="...">
      <img src="3.jpg" class="d-block w-25" alt="...">
      <img src="4.jpg" class="d-block w-25" alt="...">
      <img src="5.jpg" class="d-block w-25" alt="...">
    </div>
  </div>
  <a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

Excuse me.How can this be achieved?
can add a demo in carousel page?