Just want to know if there's a way to simulate a direct manipulation like Drag and Drop with
So the short story, is no we don't support drag & drop simulation in Catalyst.
This is something you would have to add in Flash Builder.
There's some more info on getting starting with drag & drop support here: http://www.adobe.com/devnet/flex/quickstart/adding_drag_and_drop/
Please feel free to elaborate and add detail about how you would like to see drag & drop work within Catalyst.
Thanks, and let me know if you have any further questions.
Many thks Tara.