Press the button CTRL (leftbottom of keyboard) and at the same time the ] button.

When you have done this, a console (window) will pop up and type one of the below. Press enter, then escape.

Code - Result:

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