Angularjs drag and drop who supports nested drop elements

Question

I am using this plugin of angularJS- http://ganarajpr.github.io/angular-dragdrop/ and wants to achieve something like this-

http://jsfiddle.net/J7azG/40/ 

(similar to "greedy" feature in jquery ui dragdrop)

Can someone please advice how to do this?

Answer 1

Found the solution- It can be achieved by assigning different channels for the two different drop sites and the dragged element ( while dragging) describes the corresponding channels . By default it doesn't transfer element to parent from child.