How could I change the Server Select map on Season 4?

[martinx09]

So, as far as I know the server select screen shows World78, which is Elbeland on the background.
Is there a way to replace it with another map?
So for example server select will show Devias on the Background :)

[MentaL]

[KarLi]

u need to change map ID instead, i think in main.exe u need to find the offset of the current map, and change the map number and save.