URL Filtering: Recategorise sites without modifying primary category

[User1234]

Hi!

Is it possible to recategorise sites/urls without modifying the primary category, but only add a new category to the additional categories?

EDIT:
I try to categorise site only locally to private categories to create a granular rule base. So categorising on a global level is no option. Also, I do not want to change already existing categories, but only add one.

[Chris_Atkinson]

Can you provide some background on the bigger picture of what you're trying to achieve?

Source: https://urlcat.checkpoint.com/urlcat/main.htm 

[the_rock]

Maybe this is what you need?

 

[User1234]

Thanks for the reply. Sort of. I want to add an additional category, but do not want to modify any exisiting ones. And as far as I know, if I create a new local application with a site already existing, I will override any global categories. Is this correct?