How to change Prefixheader in the Teststand Report

[Rshah31]

Hello, 

I want to change Prefixed header of the Report. I have changed it manually by changing in Horizantal.xsl stylesheet. As shown In the figure. I have added fix string "Report" on the top of the report in the center. 

I want to change it dynamically as I change the sequence, Prefix header should be changed. I have tried it with ModifyHeader callback, and there I have tried to manipulate with expression. but I did not get any success with it.

Do you have any idea how can I do it? 

Please guide me though it

Thanks in advance