@Lachlan & Soma
Thanks for following this thread guys.
Regarding the Realism Map; I have already taken the map and placed all the new resources. I am testing it right now. My idea was to put each new resource in its original place. e.g. Potato and Coffee comes from South America, Lemon comes from Iran while Cotton comes from India.
If anyone has more information where to place the following new resources according to their origin please help me: I know that nowadays every country has its own potatoes, but if we place each resource everywhere, AI won't trade anymore with you. So stick with the country of origin please:
Cannabis
Coffee
Cotton
Lemon
Pearls
Potato
Salt
Sulphur
Regarding forbidding other maps, well some people might to like to play generated maps rather than the Earth map.

I know I don't understand them either.
Regards
Houman