categorize - what is it & how to do it

[janrif]

I noticed "categorize" but couldn't figure out what it is.

There is a reference to sort / categorize search results & in help it appears user can switch between categoized attribute list & alphabetized list by

~ Start ~
Categorize attributes (sort alphabetically if unchecked): If checked the Attributes displayed in the Item Attributes Pane will be categorized (then sorted alphabetically), otherwise they will just be sorted alphabetically).
~ end ~

However I can't see / figure out how to do either of these two categorize functions.

Can someone offer some help / uses to me?

Thank you.