How to post a link in facebook with "VIA" group link?

[Happy Hopping]

I notice in some group, if I share a story from that group, let's call it GroupABC.

So say I read a story in GroupABC, and I want to share it, I click the SHARE button,

then I click the name of the person or another Group that I want to share with

it has a "via GroupABC" (Remove) on it

so if you share it on say another group or a friend's page, it would read:

my name via GroupABC

then the story (link)

======================

now, how do you to that "Via GroupABC" trick?

Is it w/ this trick:

http://www.hongkiat.com/blog/customize-facebook-status/

or is there another way to do it? As they ask me for my phone no. or cr. card