Hi and welcome...
I'll take your questions in turn:
1. I'm afraid not. The address database in the TomTom is simply not good enough (or large enough) to include
all addresses, especially on private industrial estates.
In fact the way it works even on normal streets is that the positions of just a few specific house numbers are logged and then the system "guesses" the positions of the ones in between.
This can often lead to some quite large errors if the houses are not evenly spaced.
On industrial estates they usually just don't bother.
I find that searching by Postcode is usually the most useful method, but on an estate it can still be pretty vague and leave you searching along a couple of rows of units.
2. The TomTom system is all based around
streets.
When you get to that "Crossing?" question, the TomTom is just asking "Can you narrow down the place you want to go to by telling me another road that crosses the one you've told me about?"
If that's not relevant to you then just ignore it, you don't HAVE to tell it a crossing (or a house number for that matter...). It just uses as much information as you give it.
3. The file name is called "MapSettings.cfg (or sometimes it's "mapsettings.cfg") and it's found in the map folder on the unit ("Europe", "Great Britain" etc. whatever yours is called).
If you want to
back up your favourites, you can just copy it to your PC.
Now... there's a bit of a problem with exporting and importing it though.
As well as your Favourites, it also contains a lot of OTHER information (like your POI warning settings, your Home address and your recent destinations).
There are third-party programs which can read all the the addresses out of MapSettings.cfg (one good, free one is called POIEdit), and you can wade through them to find the ones that were Favourites. But I don't know of any programs that can
save the file so that it's still readable by the TomTom.
But all is not lost...
What we normally suggest people do is to save all their important addresses as
POIs instead, and to only use the Favourites as a quick "scratchpad" memory.
You can create as many POI categories as you like (one for friends and family, one for business contacts etc.) giving each category a name that's relevant to you; and you can then save as many addresses as you like in them
(if you're using Favourites there's a limit of about 48, if I remember correctly).
You can use POIs in just the same way as Favourites. Sometimes there are a couple more button presses involved, but you can do a few little tricks like putting an underscore character "_" at the beginning of a category name.
Then that POI category is always listed first, at the top of the alphabetical list, so you don;t have to scroll through the list to find it.
Your own POI categories are stored as standard ".ov2" files (again in the map folder) and programs like POIEdit and "Tyre" can read and write the files, and can do clever things like merge several of them together. It all works really well...
I still use Favourites for a "quick and dirty" temporary storage, but if it's an address I want to keep. I re-save them all into my POI categories.
(You can do that on the Browse map screen - Find Favourite, tap Blue "cursor" button at the bottom, save as POI).
That's a lot to take in all in one go... any questions, just ask!
