Hi guys.

THanks for your answers.
I'm not sure I have understood exactly what you meant with your first answer. I have to check out more info about this "second renderer" tomorrow.
At least now, indeed, the drawing of the trail seems to work and appears well in OSM. Cool! altough I don't understand why it changed suddently. What did I do wrong? Maybe the path was too long?

I have changed the characteristics of the parking according to your answer, wilpin. Let see tomorrow if this shows correctly.

Ok! it works perfect!
Thanks a lot!

Just another question if you are still reading:
How can I read maps of 2(or more) different countries. I believe that if the file is not called gmapsupp.img, it won't work...
Is this possible for example to have maps of Finland, Sweden and Norway all in the same micro SDcard?

Thanks for your comment, Celso!
Very nice from you.

I indeed arrived to this website fredericbonifas.free.fr (for french maps) while looking for info on the web. I am currently downloading one map and will try soon.
Thanks for your link. It confirms me that I was on the right direction ;)
+ it gives a very clear description of what to do with the downloaded file.
Thanks a lot for your precious help!

I will try and let you know about the result on this post.