How to drag-and-drop a button between 2 Pictureboxes?

Hi all
I need to create an application, where I´ll have two pictureboxes on a form, and a Command Button array inside Picturebox1.
Then, I need to drag these command buttons from Picturebox1 and drop them in Picturebox2.
Is this possible?
I´m asking this, because I can do a normal drag and drop operation, if the ideia is to only move the buttons inside a single
picturebox, or inside a single form, but dragging the buttons to the outside of their native picturebox, to the second picturebox, is
another story, which I was´nt able to figure out how to do it.

Does anyone knows how to make this possible?

Thanks in advance