Open the "baldur.ini" file in the game folder with your text editor and add the line "Debug Mode=1" under the "[Program Options]" heading. Then, while in the game, press Ctrl + Space and enter of the following codes. Press Enter, then press Ctrl + Space to close the console window and activate the corresponding cheat code:
Full map: CLUAConsole:ExploreArea()
Enable in-game key cheats: CLUAConsole:EnableCheatKeys()
Set experience points for selected character or group: CLUAConsole:SetCurrentXP("[0-2950000]")
Set available gold: CLUAConsole:AddGold("[number]")
Teleport to indicated location: CLUAConsole:MoveToArea("[location number]")
Spawn monster: CLUAConsole:CreateCreature("[monster name]")
Spawn item: CLUAConsole:CreateItem("[item name]")
Spawn multiple item: CLUAConsole:CreateItem("[item name]",[number])