#9 how can I group nodes and make them behave like one nodes in Jung

[Perihan Ersoy]

Hello,
I'm new on Jung. I needs the following development in Jung. I want to group each three vertext and make them behave like one vertex. When I move them all three vertex should move together.
Also arc should enter the left most vertex and leave rright most vertex.
Is there any way to do in jung? Can anyone help me to do this?
Thank you