Are you using the McAfee Web Reporter or Content Security Reporter? All MWG access logs get pushed to one of these systems and can be analyzed for reports. They also have the ability to schedule reports to be sent out.
The MWG by itself has no real reporting functionality.
This sounds like a job for Web Reporter/CSR!
Visit the following URL to download the latest version of Web Reporter/Content Security Reporter, you will need to enter your Grant #:
Here is a comparison of the two reporting products:
Here is links to their respective product guides:
Web Reporter 5.2.1 Product Guide - https://kc.mcafee.com/corporate/index?page=content&id=PD24232
Content Security Reporter 2.1.0 Product Guide - https://kc.mcafee.com/corporate/index?page=content&id=PD25235