Activating this trainer:

Press F1 at main menu.

Listen for 'Trainer Activated'.

Press desired hotkey. All hotkeys can be changed on the trainer.

Trainer Options:

Numpad 1: Caps

Numpad 2: Food

Numpad 3: Power

Numpad 4: Water

Numpad 5: Stimpaks

Numpad 6: Research Paks

Numpad 7: Nuka Cola

Numpad 8: Perfect Happiness

Numpad 9: Max SPECIAL

Numpad 0: Max Health

Numpad *: Easy Level Up

Notes:

Wait until you are in the game and can move your dwellers around before trying to activate options.

Numpad 1: Caps - press key and you have plenty.

Numpad 2: Food - press key and you have plenty.

Numpad 3: Power - press key and you have plenty.

Numpad 4: Water - press key and you have plenty.

Numpad 5: Stimpaks - press key and you have plenty.

Numpad 6: Research Paks - press key and you have plenty.

Numpad 7: Nuka Cola - press key and you have plenty.

Numpad 8: Perfect Happiness - toggle on and your dwellers are happy.

Numpad 9: Max SPECIAL - you need to click on at least one dweller to affect so that the info screen opens, then toggle this on. You can click away and click back and the dwellers then likely will all have max SPECIAL.

Numpad 0: Max Health - for this to work best, press the COG WHEEL at the upper left to view your dwellers then toggle this on. The dwellers will then have max health. This may keep visible dwellers health at 100%. May not help those who are exploring, although you can still heal them using the COG method described here.

Numpad *: Easy Level Up - you need to click on at least one dweller to affect so that the info screen opens, then toggle this on. The dweller likely will be able to level up much more often when it earns legitimate XP.