When you drop:
- add the payload to a new container (a border / named slot in the recycle widget)
- play the animation
- once the animation has finished, Remove (the dropped widget) From Parent
It would look close to this:
- expose the desired container as variable (here, a border):
- create a custom event to handle the animation and removing the widget after.
- when you drop:
Untested but should work a.k.a. famous last words…
Essentially a widget can only have a single parent, adding a widget to new container reparents it.
The above can be made work better with a custom Drag&Drop operation.