title: Drag & drop multiple items at once, as a stack
body: <p>I'm trying to implement a system that allows me to drag multiple selected items at once, but once dragging starts, they should collapse into a stack with an integer showing how much items are being dragged, not individual items that keep their relative position.</p>
  
  <p>I've been looking at existing Drag &amp; Drop implementations and got multi drag working but I can't seem to find a library that allows my to override the drag proxy with my own implementation. </p>
  
  <p>Anyone has an idea how to accomplish this? Or should I look into writing my own Drag &amp; Drop solution using HTML5 Drag &amp; Drop API or another library?</p>
  
  <p><a href="https://i.stack.imgur.com/j4sBc.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/j4sBc.png" alt="enter image description here"></a></p>