Sub groups & Contact importer-inviter

Hello... sir, can i make sub groups in a group , for in a campus or college network, some sub groups need for a batch eg: 2007-2009 or a class romm eg: Mechanical engineering students only, in a main group that named their College .! have any way to make it ?

Then i request to add the openinviter (Free email contact importet to boonex dolphin) The other social networks like ning.com, socialengine can send colour full HTML email invitation with profile photo. please make it also. !

Please give a solution to : anandnambissan2@gmail.com

I would also like to see a sub cat. be available.

You know, I was just about to jump in and start working on a solution to this.  Figured what the heck, it's a useful idea. 

But then I noticed, you want me to e-mail it to you. 

Well, unfortunately the person who operates my computer has no clue whatsoever as to how to operate e-mail, he's just not that smart and I'm way to lazy to click my mouse an extra time, so it's not happening.

***And before someone whines about this, you wouldn't e-mail it to them either.  Exactly how strong of a sense of entitlement does one have to have to put that in a post.  I'm actually thinking about selling his e-mail to the spammers now that I think about it.  :))