Dust sucking simulation

Hi all,
I am a new user of LIGGGHTS. I just could install it yesterday. righ now I am studying this program from examples.
My intention of using this program is to simulate dust sucking or powder sucking process from tray using some nozzle which can be moved above tray. I want to know whether this program can do it or not. Which topic or command should I focus on?
The example of the process is:
http://www.youtube.com/watch?v=pCB4zkhuKIU&feature=youtu.be
Thanks,
Krisda