Problem with map controls

[Melquiades]

Hi, my mouse wheel stopped working a few days ago and now I can't scroll in and out in the world map and the keyboard commands Numpad + - don't work either for some reason. I can still play perfectly, but it sucks to see the map so zoomed in, is there some way for me to change the keyboard controls for the map or the set zoom at which the game starts?

Thanks in advance!

Edit: Already solved it using a mouse emulator, thanks anyways!