When looking at traffic reports, it would be very useful to have the ability to view by custom-defined hostname groups.
For example, traffic to/from Akamai goes against a number of different servers, such as "a60-254-131-154.deploy.akamaitechnologies.com", "a60-254-131-178.deploy.akamaitechnologies.com",
"a60-254-131-169.deploy.akamaitechnologies.com". These each appear separately in the reports. I would like the ability to create a group called "*.akamaitechnologies.com", where I can either specify hostnames to include in this group, or wildcards (such as "*.akamaitechnologies.com"). This way, when looking at reports, I can see the combined total going to CDN-based systems.
Google operates in a similar way, except they use multiple hostnames. Having this ability would allow us to see how much traffic is going to/from a source such as Google.