Asp.net category listing script allows developer to create professional category listings, separate listing for different types of content (click here for detail) and provide ability to group related categories into single units within each type of content.
There are situations where you need to group related categories into single unit even for same type of contents. e.g you need to split car photo categories into smaller unites with related behaviours like
Auto Maker (Honda, Toyota, Lexus, Porsche, BMW, Mercedes etc)
Vehicle Style (Convertible, Coupe, Sedan, SUV)
Vehicle Types (Hybrid, Diesel, Budget, Luxury, Racing, Police)
Auto Shows (Geneva, Paris, New York etc)