[TYPO3] HELP! (: One more question about tt_news categories

[Cray Flatline]

I have page (id=32) where placed tt_news with CODE catmenu. and left 
menu with first level categories links.
So it shows me something like this:
Category 11
     Category 21
     Category 22
         Category 31
         Category 32
         Category 33
     Category 23
Category 12
Category 13

So I need to make such thing: when I click on Category 11 it shows only
Category 21
Category 22
     Category 31
     Category 32
     Category 33
Category 23
and if I click for example on Category 22 it must show
  Category 31
  Category 32
  Category 33

Can somebody say me, is it possible? As I understand, I need to set with 
  TS parent ID of the tree to current category. But can't understand how 
to make it.

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W BR, Cray Flatline