title: Is it possible to make an input not required with Slack API?
body: <p>I'm building a Slack App feature with a modal and several inputs.</p>
  <p>One of them is a static select with some options.</p>
  <p>I would like to make it optionnal but it seems that there is no solution for that.</p>
  <p>I tried to set <code>dispatch_action</code> to false but it is unrelated I believe.</p>
  <p>Here is my input configuration :</p>
  <pre class="lang-php prettyprint-override"><code>[
      'type' =&gt; 'input',
      'dispatch_action' =&gt; false,
      'label' =&gt; [
      'type' =&gt; 'plain_text',
          'text' =&gt; 'Choose an option (or not)',
      ],
      'element' =&gt; [
          'type' =&gt; 'static_select',
          'placeholder' =&gt; [
              'type' =&gt; 'plain_text',
              'text' =&gt; 'Choose an option',
          ],
          'options' =&gt; array_map(static function($data) {
              return [
                  'text' =&gt; [
                      'type' =&gt; 'plain_text',
                      'text' =&gt; $data-&gt;name,
                  ],
                  'value' =&gt; (string) $data-&gt;id,
              ];
          }, $dataValues),
      ],
  ],
  </code></pre>
  <p><a href="https://i.stack.imgur.com/WBTVP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WBTVP.png" alt="I can't make this field not required" /></a></p>
  <p>Thanks for your help !</p>