title: Can I add a button inside a combobox?
body: <p>just wanna know if I can do something like an add button inside a combo box, in which its function is to add a new value for the combo box</p>
  
  <p><a href="https://i.stack.imgur.com/KArrO.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KArrO.jpg" alt="enter image description here"></a></p>