Just as in all spellforce reincarnations you do the same thing. Bring up the console by pressing the [Ctrl] key and at the same time the ] key. When you got the console window up type in the following codes and confirm with [Enter]:
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
Application:GiveMeGoods(99999) - Get resources
For faster inserting after they are initially inserted you can bring up the console and hit the up arrow key to scroll through the cheats entered and just hit enter. You will never have to type in a cheat again in this game.