Nokia Nseries :: N8 - How To Deactivate Visualization Of POI In Map

I've transferred my Points of Interest (POI) to the phone memory, I've Open the file and saved them all into the Phone, then when I go the Nokia Maps, I've create a new collection. Now, how can I select all the POI that are in the predefined "folder/collection" to the new one that I've created? One by one? That seems impossible to me. How can I deactivate the visualization of my POI in the Map? And finally, after I've defined a Route, how can I browse the map without stopping/cancel the route?