title: Checkable groupbox element for HTML form
body: <p>Is there a way to reach functionality as in example below?</p>
  
  <p>Example:</p>
  
  <p><a href="https://i.stack.imgur.com/yulYn.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yulYn.jpg" alt="Enter image description here"></a></p>
  
  <p>You could check 'Validity', and it will pass extra values on listed inputs inside this groupbox when the form will be submitted.</p>