Own dynamic start path for KM navigation iView

Hi,

I have the problem, that I must point the user dynamically to an specific entry point of the KM navigation.

Configuring the path of this iView I can do this like the following:

/_alias/userhome/<user.id>/Personal Documents

In the <> I can put different options.

Where can I find an overview, which options I can use in the standard?

The other more important question is, how can I add here an own parameter?

How can I set this parameter?

Thanks for your help.

Regards

Daniel