Trouble with Complex Header Span

Hello Team,

I was reading through complex headerSpan, and i got a hint to use the CubeGrid of EE version.

Tried little bit on the Cubegrid, and looked at the sample, it seems that it is not as per my requirement.

I'm trying to create a complex grid. Where i'll be using nested grid, and the expand collapse of column based on the button, and dynamic header span of the inner record. it looks something like the attached image.

I have done,:
- Nested Grid
- Expand and collapse with the help of a toolstrip button


I have to do:
- Add that toolstrip button to the header span.
Eg., In my example before to (+) Header Span1
On click of that the other columns will be shown and the name changes to (-) Header Span1

- Now coming to the nested record, there is a complex header span structure, where each Head1, Head2, Head3 are alike and getting the data dynamically from the selected parent record.
Eg., ( Head1 gets, 4, 5)

Now the question is, can i do this complex header in smartGwt ?
If yes, which widget ? Will CubeGrid Help ?
Or any other widget.

Attached Images

CubeGrid.jpg (74.8 KB)