But not yet, I hope that the developers will make a mistake and add it there :)

Well, may be there is a flat map in Steam Workshop already?

Your video didn't help me, I couldn't read from it how you came to that map ..... I'm probably making a mistake somewhere :( (
I'll wait for the developers to add a straighter map (if at all)

you can put any customs you wish in Map Editor, as I did on this video.

Thank you for your help, but now I realized that even if I managed the map, it would be an island and it would be without customs and other things and without the sale of goods, for me the game does not make sense
Thanks again for the help

Paint is Windows built-in utility =)

Thank you, and where do I get to MS paint? If it was an English page, it wouldn't help me

nah, you don't need any map generators. Just use MS Paint and make 512x512 gray .png file.

Thank you for all the help, but creating a gray map presupposes creating such a map in the map generators, and I'm short on that :( ((

just like any hightmap: see 3:20 and later.