Here is the best way to do it.
Create server with one you can see. Above the start in base tab in the inventory screen you'll see an I and a C, click C. At the bottom of the new screen type maps hit enter. This brings up a map list. At the bottom of that screen type- change_map # 10 or whatever number of the map you want hit enter.
It allows you to see all the maps on the hosts server, and on your HD if your hosting.