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: Unlimited Party Health
Numpad 2: Unlimited MP
Numpad 3: Super Damage
Numpad 4: Full Teamwork Techniques Meter
Numpad 5: Unlimited Spell Charges
Numpad 6: Fast Spell Cooldown
Numpad 7: Unlimited Elemental Energy
Numpad 8: Set Gil
Numpad 9: Fast XP Gain
Numpad 0: Item Multiplier
Numpad /: Unlimited Gas
Numpad *: Unlimited Crafting Potion/Items and Magic Flask Slots
Numpad -: Set AP
Numpad +: Easy Fishing
Numpad .: Unlimited Chocobo Stamina
F2: Unlimited Stamina
F3: Unlimited Arminger

Notes:

Numpad 1: Unlimited Party Health - toggle on and the trainer will try to quickly heal any damage and keep the health at 100%.

Numpad 2: Unlimited MP - toggle on and the trainer will try to quickly refill your MP.

Numpad 3: Super Damage - toggle on and most enemies are killed very quickly.

Numpad 4: Full Teamwork Techniques Meter - toggle on and the trainer will try to keep the meter full.

Numpad 5: Unlimited Spell Charges - toggle on and when you cast spells the trainer sets the number of remaining charges to the value shown in the trainer.

Numpad 6: Fast Spell Cooldown - toggle on and most spells are ready to be used again very quickly.

Numpad 7: Unlimited Elemental Energy - toggle on and then enter the menu that you use to create spells and equip them and you have the amount shown in the trainer to spend. Toggle off when not needed.

Numpad 8: Set Gil - toggle this on and then enter the menu that shows your Gil and the trainer will set your Gil to the value shown in the trainer.

Numpad 9: Fast XP Gain - toggle this on and the trainer will add the amount shown in the trainer instead of the normal XP amount each time XP is earned.  You can level up when you sleep.  You can level up characters very quickly using this.

Numpad 0: Item Multiplier - Press TAB,then ITEMS, then toggle this on, and then press CHECK, and each area you enter to look at your items, each item will be set to the value shown in the trainer.  For instance, if you had 2 Potion, then it will be 99 Potion if the value is at 99 in the trainer.

Numpad /: Unlimited Gas - toggle this on and when you are travelling your gas tank remains full.

Numpad *: Unlimited Crafting Potion/Items and Magic Flask Slots - this option was created to use in the Elemancy section of the game. Toggle on then enter the Elemancy section, and you will have more slots and when you create a spell and use item/potion modifiers you will have the number of them available that is equal to the value shown in the trainer.  May work in crafting or other areas where you have to use items/potions, etc.

Numpad -: Set AP - toggle on then enter the Ascension section and you have the amount shown in the trainer.

Numpad +: Easy Fishing - toggle on and this will keep the durability of your fishing line at 100%, keeping the line from breaking.

Numpad .: Unlimited Chocobo Stamina - toggle this on and you can use the sprint for the Chocobo over and over without running out of stamina.

F2: Unlimited Stamina - works for Noctis when you are running or using stamina.  Toggle this on and the stamina (as well as the meter if you have it engaged) remains full.

F3: Unlimited Arminger - toggle on to fill the Arminger bar.