[flexcoders] Draging and droping items from list to tree component

[srini3477]

I have a list of items which are going to be headings, and one more list of 
items which are going to be sections under headings.

I have requirement to drag and drop  items from these two lists to a component, 
so that should contain like headings and sections under headings.

I chosen Tree component as third component,


Please can any body help, how to do this.