title: Tampermonkey script keeps clicking on button
body: <p>I am completely new to Javascript/Tampermonkey. I am trying to make a Tampermonkey script that (fast) clicks once on a specific page button as soon as the page loads. After the mouse click, the website asks for a verification. The verification has to be done manually.</p>
  
  <p>This is the code of the button on the website:</p>
  
  <pre><code>&lt;button class="btn  btn--arrow  push-right  js-continue-scrollposition" type="submit" id="btnSave" name="Command" value="plaats"&gt;Send&lt;/button&gt;
  </code></pre>
  
  <p>This is my script in Tampermonkey:</p>
  
  <pre><code>// ==UserScript==
  // @name         Test
  // @namespace    Test
  // @version      1
  // @description  test
  // @author       Me
  // @match        LINK OF THE WEBSITE HERE
  // @grant        none
  // ==/UserScript==
  (function() {
  document.querySelector("#btnSave").click();
  
  })();
  </code></pre>
  
  <p>This code seems to work fine but there is only one problem. The script keeps spamming the button on the website. I only want to generate one (fast!) mouse click on the button, and after that the script needs to be stopped or paused so I can do the verification. I've been busy for a whole day but I can't find a solution. Maybe someone can help?</p>
  
  <p>Please keep in mind that I am completely new to this. This is my first day of using all of this.</p>