title: How to display fixed number of elements of v-for inside v-window
body: <p>What I'm trying to achieve is this: I have a  parent component in which I need to display 4 items of image+name of a client. I have a list of about 26 clients (name and url to the logo), and I need to display only 4 at a time, and autogenerate the necessary  childrens. </p>
  
  <p>I have problems trying to achive a clean code for this, can someone give me some pointers on how to achieve that? Thanks in advance!</p>
  
  <p>tldr: How can I let vue know that it must add a new v-window-item after 4 iterations of client data.</p>
  
  <p>edit: adding example</p>
  
  <pre><code>&lt;v-window&gt;
    &lt;v-window-item&gt;
      &lt;div v-for="n in items" :key="`div-${n}`&gt;
        &lt;v-image src="n.url"&gt;&lt;/v-image&gt; 
        &lt;p&gt;{{n.title}}&lt;/p&gt;
      &lt;/div&gt;
    &lt;/v-window-item&gt;
  &lt;/v-window&gt;
  </code></pre>
  
  <p>Here I get all the divs together, in one v-window-item. I would need to generate +1 v-window-item every 4 divs, so I display only 4 at the time.</p>