Help with map making (Noob)

I modified a some bits on the italy map. Now my problem is that I don't know how to rename it. I tried...
- just changing the folder names - Didn't work
- changing the map name in the info.json - If the mod was active the normal italy map won't show up
So what do I do wrong?

My second problem is that I copied the toll booth from WCUSA but even after adding all the materials to the main_materials.json not all of them are working. The bottom below the cabin says no material and some little parts.

I can provided more details tomorrow.

 

Perhaps take a look at my tool.
https://www.beamng.com/threads/beamng-tool-for-map-creators-big-update.89058/

 

Thanks looks just like what I was looking for.
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Is it able to run on linux through wine/proton as for me it doesnt seem like it works

 

No.

 

So I fixed the texture error myself. But is there any way to rename the map manualy?