This allows you to quickly spray plants or kill weeds. R button fills tanks. B button sprays liquid fertilizer or herbicide. left mouse button goes up right mouse button goes down, w,a,s,d. forward back right left. It also works in multiplayer with your friend, even two of you can go and spray with separate machines. Have a good game!You need a map that has an airport, for example the FS22_Ceskoslovenska map
