You have a view with categorized column and want to display it on the web page as use can click into categorized...
column links (not twisties) and it then shows only detail content of single category.
On the Web, show FirstView, when user clicks to the links, it then shows content of the SecondView. You can customize the SecondView by creating "$$ViewTemplate for SecondView" form.
Create two view with same category as you want, for example FirstView and SecondView. In the FirstView's category column formula, enter:
"[<A href="SecondView?OpenView&ExpandView&RestrictToCategory="+ @ReplaceSubstring(LinkText;" ";"+")+ "">"+LinkText +"</A>]"
SecondView category column formula:
You can using Query_String to display category title in the SecondView.