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 Turns Left
NumPad4: Unlimited Action Points
NumPad5: Change Funds By 500
Edit: Current Action Points
Unlimited Turns Left: While active you have unlimited turns in battle.
Unlimited Action Points: While active your action points will not decrease.
Funds: Press hotkey or use editor to change your funds. You must get/spend funds in the game to see changes.
Unlock more trainer options including updates from here - Eiyuu Senki World Conquest Trainer