While playing, bring up the console by pressing [CTRL] + ]. Then type:

Enter the code(s):

Application:SetGodMode(1) - God Mode
Application:SetNoManaUsage(1) - Unlimited Mana
Application:FastHeroCast(1) - Create Heroes Fast
Application:SetBuildingFastBuildMode(1) - Fast Build
Application:SetFigureTechTreeMode(1) - All Units
Application:GiveMeGoods(99999) - Add Raw Materials
Application:SetBuildingTechTreeMode(1) - All Buildings

Please provide more information if you know more about the unknown code(s).