I want to replace my old map (Europe 965.7250) by a new one (Europe 990.8306), but most importantly, retaining all the POIs, Favourites, voices (LoquendoTTS), schemes, skins, sounds, safety cameras, preferences, and so on.
Last time I did a map upgrade it took ages. If I remember correctly, that new map overwrote many of the files/folders that I'd built-up over the months (including the ones I've mentioned above). That meant I had to laboriously copy ...