Enhancement Request: website categories to be further defined...

Hello,

 

is it possible for website categories to be further defined...for example:

 

right now there is just a SHOPPING category, but without know which type of shopping it is (i.e, Shopping - Apparel, Shopping - Electronics, Shopping - Auto, Shopping - Intamate Apparrel, etc.)

because it would be good to be able to block websites by certain types of SHOPPING...for example...Shopping-Electronics may be allowed, but Shopping-Intamate Apparrel should be blocked..