[Zope] presenting users with different Views of a tree

Hi, before i have mailed the Question wether it's possible to present users with a filtered view on a hierachical tree with respect to tree items with the same Identification. as far as i now understand by reading docu it should be very easy in Zope thanks to the tree tag ? is that right ? thanks Micha ----snip only to connect the above statement to my previous mail--- i have sub1 sub1 sub 2 sub3 main sub7 sub1 sub8 as hierachical tree and the user shall seeafter a request or search Category1 Category2 Category3 sub1 sub1 sub3 -- :-)