Hello World!
I'm talking about creating drag and drop in Alice3.
I have a scene with 3 fish,
and I would like to be able to drag the fish around and reposition them.

Click on initializeEventListener,
Click mouse, pick default model manipulation.
Let's run it.

If I click on a fish... there we go.
If I click on the fish I can drag them around and
do things that fish can't really do like intersect with each other.

If I'm not clicking on an object
I can move my camera angle.
That's it!  We have drag-and-drop.