Hi there guys.. this is somthing i strongly need and cand find any example o how to make it. i need my grid to be somthing like:

                                    
                      [  original  ]
[id][description][cost][cant][total]
| 1|procuct1     | $10 |  10  |$100|
| 2|procuct2     | $15 |  10  |$150|

where columns "cant" and "total" share a Headder "original".
is this possible??.

Sorry, it is not possible now with KoolGrid :(

will have to make my own extension iguess. :P