First Map, what do I need?

[Dr3as]

Hi,

Sorry if this is posted the wrong place, but this is my first post here.

I'm thinking about creating a new map, what I want is a flat map with trees all over.
Found a tutorial on how to make a map flat, starting with the us map, so that should be ok.

But what more do i need? I ofc need a sellingpoint and a shop, but are there anything more needed to be a working map with FS22 Platinum features?

Thanks in advance.