Grouping Row example support - easy question

laeherim

Hi,
i'm testing DataTables and i've got stuck on this issue.
I was trying row grouping. Everything is working correctly but I'd like to add some text from other columns to the same group row.
I don't understand how to get the values I need: it has to be a easier task but i'm not really expert.
Anybody could help me?

thanks in advance.

p.s. The example i was testing is on : http://www.datatables.net/examples/advanced_init/row_grouping.html.