Since there's no way to do this in just one step, the workaround for this issue is quite simple. Basically, what you're going to do is redirect to a landing page where you'll input a custom module made in the design manager including the code below.(in this example i redirected to the google homepage) What this will do is give you 2 seconds of delay before redirecting you onto the next link.
<div id="thank-you-container">
{{ thank_you_message }}
<h2> Thank you!</h2>
<p>We'll take you to the next step in just a moment...</p>
</div>
<script>
console.log("Redirecting to: https:\\google.com");
setTimeout(function() {
window.location.href = "https:\\google.com";
}, 2000);
</script>