How to pass the "path" dynamically to KM navigation iView ?

HI Experts.

This is my issue:

I have a WD Java iView, with a data table.

In the same page, I have a KM navigation iview too.

Conceptually, each row in this table, have some documents in a CM Repository asociated.

This repository has subfolders for each master data in the table.

(example: imagine a table with material master data, and a repository with a subfolder for each material,

and inside of it, several unstructure documents about this material.

Then, I need to call a KM Navigation iview when click a table row, passing parameters, in special the "path".

I am using this code in my action (triggered from webdynpro iview)

WDPortalNavigation.navigateAbsolute("ROLES://portal_content/com.stk.demos.folders.zz_demos/com.stk.demo.ch.TEST_CH/com.stk.demo.ch.Listar_Docs",

WDPortalNavigationMode.SHOW_EXTERNAL, (String)null, (String)null,

WDPortalNavigationHistoryMode.ALLOW_DUPLICATIONS, "test",

(String)null, (String)null );

Partially it works, the window open and show the navigation iview, but...

in the root directory (or directory indicated in iView harcoded properties);

But I need pass the path !

How can I call that iView, dinamically using a parameter, the path (property ID: path)

to the KM navigation iView, in order to open initially in a indicated path?)

I have read this link

http://help.sap.com/saphelp_nw04s/helpdata/en/c3/235a428a1e9041e10000000a1550b0/frameset.htm

but, I still can't understand how to use this parameters.

Thanks in Advance.

Leandro.