European Prius 2007 Questions, questions

I called the folks at Lockpick they can't help, so here is the question. On the current European Prius with IPA (therefore no JBL) is there a way to make the navigation system operate in particular for points of interest and or route modification while moving? Also does anybody understand why it was either JBL or IPA in the European spec? Does anyone know whether the top of the line Euro spec share the same options (such as touring spec) of it's US cousin?

Regards from Monaco


S