WebDynpro and Object Based Navigation

To anyone who can answer this question:

I am trying to test out Object Based Navigation with two WebDynpro apps. In the first app, I have three LinkToAction elements. When one of these links are selected, the corresponding action will call the WDPortalNavigation.navigateToObject() method. The text of the links is the object value I would like to pass. My question(s) are:

1.) How is the object's value passed?

2.) How does the target of the link read this parameter? Is there some set up I have to do on the Portal side?

Regards,

Chris