title: How to control rendering of multiple checkboxes in a "b-form-checkbox-group"
body: <p>I have this Vue code:</p>
  
  <pre><code>&lt;b-input-group &gt;
     &lt;b-form-checkbox-group id="boxes"
        v-model="selectedBoxes"
        :options="boxes"
        name="boxes"
        stacked /&gt;
  &lt;/b-input-group&gt;
  
  // my data() includes returning:
  boxes: ['1', '2', '3', '4', '5', '6'],
  selectedBoxes: [],
  </code></pre>
  
  <p>producing this rendering (due to the <code>stacked</code>).  I would prefer to have the checkboxes two wide, in a stack of only three.  Is that easy to new (new to Vue).</p>
  
  <p><a href="https://i.stack.imgur.com/mVD1G.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mVD1G.png" alt="enter image description here"></a></p>