OPManager Reports Customization

OPManager Reports Customization

Hi,
 
I need some assistance that how I can group the routers In OpManager under Routers tab  for diffrent locations and generate report for this particular group, also I need to print the reports for all the groups together.
 
Moreover, I want change the logo on the report.
 
Pls. advice.
 
Cheers!
Raza

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