NAV 2013 reports-Adding groups to a list

Hi everyone,

I am trying to add groups to my list but I don’t really understand how to do it…

I want to add three groups on the same way as the first tablix of the standard report 206(sales invoice) but I don’t really understand …

It looks like the groups are nested or so on…

Can anyone explain to me how to do it??

First There should be some Value in Row the try to add Group dont forget Group by Fields.

and then Remove 1st coloum of group which is auto generated… …