Custom Reports are considered an value added feature. We do not provide guidance on how to use these custom reports in Gradience.
We have however, created a tutorial on using the custom reports feature in Gradience. Please download the attachment below, unzip the file to your desktop and run it from there.
Additionally, you may click on any of the PDFs below for more specific steps on customization. If none of the PDFs address your needs, perhaps you can extrapolate from them to achieve your particular objectives.