Activating this trainer:
Press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey. All hotkeys can be changed on the trainer.
NumPad1: Infinite Health
NumPad2: One Hit Kills
NumPad3: Unlimited Match Time
NumPad4: Infinite Rage
NumPad5: Super Fight Money
NumPad6: Force Player ID In Battle
NumPad7: Unlock All Items
The trainer assumes you are playing on the LEFT side. Cheats will not work correctly if you are playing on the right side.
Super Fight Money: While active win a battle in offline 'Treasure Battle' mode and you will gain LOTS of fight money. Repeat this until you have enough fight money.
Force Player ID In Battle: First enter the character ID on the trainer GUI you wish to be. You can option the ID from the character selection screen. The first character has the ID of 0, the second character ID of 1 and so on. Then activate option and select your character and start the battle.
Unlock All Items: While active you can purchase all items.
Unlock more trainer options including updates from here - Tekken 7 Trainer