NGUI: Draggable popup list

Hello everyone,

I'm playing with ngui addin (very nice by the way !) and I'm wondering if there is a way to make a very long popup list draggable ?

For now I have my panel with the UIDraggable panel script attached to it, and my popup list as a child with the UIDrag panel contents script.

If I'm correct, I should attach this script to the game object that is automatically created at the same level of the popup when the user clicks on the popup. I'm sure I'm missing something huge here, and I need your help to find out what...