[away3d] Away3D 3.6: Sprite2D now inherited from Elements not from Object3D

[rderimay]

In Away3D, Sprite2D (DirectionalSprite now) ist not inherited from
Object3D anymore.
I used to use these functions:
        .useHandCursor = true;
        .addOnMouseDown( );
        .addOnMouseUp( );

to track user interactivity which now does not work anymore.

Is there any way to get around this problem? Maybe Sprite2D has been
split in 2 classes, one being DirectionalSprite without user
interactivity and the second one being something else which I miss?

Many thanks, I am stuck!

Régis