The reports section gives you insight into the different aspects of your xzazu.
All reports will ask you what you want to have shown by asking for params (parameters).
They are in different subsets.
In almost all reports, you have something called Grouping, group by.
This means we aggregate the information, based on this group by, giving you more meaningful data.
Often there is also a subset called Filter.
Filters are used to limit the data used in the report.
Sometimes there also some different options in the Subset Options.
These options depend on the report.
The best way to get started with a report is to just press go the first time, and then try the different groupings, filters etc to tune to your requirements.