You are looking at the manual for Wusage 7.1. This product is three years old! Check out Wusage 8.0 and its remarkable new features.
Wusage 7.1 Manual
If you prefer to manually edit your configuration files, use the following syntax for this option:
The Chart Top Sites (sites) report can provide information about the number of bytes of data transferred. Use the Top Sites Report: Show Bytes (sitesbytes) option to indicate whether this information should be included in reports.
Topical Configuration Editor Reference
Alphabetical Configuration Editor Reference
Alphabetical Configuration File Reference
Glossary of Frequently Used Terms