Chapter 7 Firewall : Firewall objects : Services and TCP ports : Categories
  
Categories
In order to make sorting through the services easier there is a field to categorize the services. The services can be sorted into the following groups:
Uncategorized
General
Web Access
File Access
Email
Network Services
Authentication
Remote Access
Tunnelling
VoIP, Messaging and Other Applications
Web Proxy
To create a new category, use the downward pointing arrow next to Create New in the Services window and choose Category. All that will be required is a name for the new category. A comments describing the new category is optional.