Using this Trainer:
Launch the trainer first, then launch the Game and then Press F1 at the Main Menu.
Listen for "Trainer Activated".
Press desired hotkey.
Numpad 1: Freeze Level Timer
Numpad 2: Add 25 Food
Numpad 3: Add 25 Wood
Numpad 4: Add 25 Coins
Wood / Food /Coins:
When you edit/add them you need to collect or spend them to refresh the value ingame.
Unlock more trainer options including updates from here - 12 Labours Of Hercules Trainer