Well ... You can place two different objects ( NonDragNDrop *Insert your item name here* and DragNDrop *Insert your item name here* ) of one item in the same position ... Then Attribute the Drag-N-Drop behavior to the top one ( DragNDrop *Insert your item name here* )
And add this little event :
If (NonDragNDrop *Insert your item name here*) is not overlapping (DragNDrop *Insert your item name here*) : (NonDragNDrop *Insert your item name here*) | Spawn (DragNDrop *Insert your item name here*)
And you are done !
Cheers !