Previous and Current Container - Dropzone

[helixaros]

I'm submitting a ... (check one with "x")

[ ] bug report => Search github for a similar issue or PR before submitting
[ ] feature request
[X ] support request => Sorry, we will not be able to answer every support request.  Please consider other venues for support requests

I have implemented dynamic DropZones using your package, and I would like to know how to get the "Previous Container" and the "Current Container" that the item was dropped. Could you please help me on how to get that information?

Thank you in advance.