need help in aligning tabs

[thomos]

Hi all,
 I have a requirement, where when there are multiple rows of tabs the default layout is like this.

Row1
Row2
Row3

But the for the layout should be

Row3
Row2
Row1

is this possible. Just reversing the datasource doesn't work as the row1 should be filled first then the row2 and then the row3.

Is this possible.

Thanks