Hello everyone!
I have tried to add a custom map to Garmin W. Europe 2.9.1 (on iPad mini with iOS 8.1.2) by combining/joining it with the downloaded one in the program.
So far I have had no luck with that, but a funny thing popped during the process.
When I tried and joined the two maps with "GMapTool", I uploaded them to the Documents folder, replaced the original "img" file and the program recognized the map as the downloaded one and it did not delete it, requesting for a new map download, but strangely it did not show it when I tried to view the map, neither my local map or the original Garmin map.
After this has happened I deleted the local map that I have added to the file along with most of the other maps leaving only a part of the map of Greece and I uploaded the same file back to the iPad.
This time when I tried to view the map it showed the map of Greece I have left with streets and everything.
So I came to the conclusion that maps are editable.
And also that the reason I did not succeed in the first place is because I could not change the FID and CP of the local map with "GMapTool" and mach it with the one of the CN 2015.20 Greece & Italy that I have downloaded with Garmin.
I have also tried other software, but none seems to do the trick.
I am open to ideas and if any of you think that this might work, lets try to get the newer versions of Garmin working with custom maps.