SSRS 2008 Tablix with column group - How to add a single header row that spans all column

Hi,

here is my SSRS 2008 reports design layout:

I have a tablix with a single column group and a textbox with a field from the

dataset.

What I want is to add a single header row to my tablix that span's all the columns printed.

I have tried several steps to add a single header row that should span all the columns printed by the

tablix but without any success.

Any help on how to achieve this is greatly appreciated.

Thanks in advance.

Bodo