Would be the correct layout for the pna file.
Make sure not to have any spaces at the end of the lines and that the file ends after the ID and not with an empty line.
After that activation should work fine.
If you want to change the name display in the TT map menu:
The XXXXX can be replaced with basically anything you like but makes sense to keep a name that suits like Benelux890
Helps if have several maps and use a SD as well.