Add more rows to an existing report

Hello Experts,

We are using the program GP3VTC3F6HZEESI6CD8V5T8PXJO010 to get a reposrt like KB10 report.

And we had assined a tcode ZDWC_KB10 for this report.

Now i had created three more cost elements and i would like to add these also in that report.

Please help,

Thanks,

Satya