Using this Trainer:
Launch the trainer first, then launch the Game and then Press F1 at the Main Menu.
Listen for "Activated".
Press desired option key
Options in Promo:
Numpad 6: Add MP Points - adds 1 point
Numpad 1: Unlimited Fuel
Numpad 2: No Infantry Damage
Numpad 3: No Vehicle Damage
Numpad 4: Unlimited Ammo
Numpad 5: Unlimited Stamina
Numpad 6: Add MP Points
Numpad 1: Unlimited Fuel - may not work with all units/weapons
Numpad 2: No Infantry Damage - may not work with all units/weapons
Numpad 3: No Vehicle Damage - may not work with all units/weapons
Numpad 4: Unlimited Ammo - may not work with all units/weapons
Numpad 5: Unlimited Stamina - may not work with all units/weapons
Numpad 6: Add MP Points - may not work in all missions
This trainer will allow you to customize the keys if you desire!
There are two ways to do this. One is the built-in custom key creation and the other is the Trainer Customizer.
Built-in Custom Key Creation (this feature is not in Promo Trainers):
To create a custom key, make sure you have pressed F1 to activate the trainer. Next, mouse over the option description on the trainer and press the left mouse button. You will hear "Select Key".
Select the key on your keyboard that you wish to use. The program will then say "Activated" and the option listed on the trainer will update to the key you selected and will have "Custom" before it.
You can also click ANY option with the mouse button and then press the ESC key to reset the trainer options back to their default keys. You will need to do this each time you start the trainer or use the Trainer Customizer described below.
Unlock more trainer options including updates from here - Battle of Empires:1914-1918 Trainer