Thanks for quick answer.
I think I should have said, that I don´t want to overwrite tweens, because they all need to be done.
The tween repeats everytime, when a new box appears.
TweenLite.to(box, 0.5, { y:box.y + 100} );
Sometimes the next tween starts within the duration of 0.5. So I´d like to set NONE with the OverwriteManager, but having the problem that it seems not possible with overlapping properties.
Ciao Martin