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 Mana
NumPad2: Infinite HQ Durability
NumPad3: Low Enemy Mana
NumPad4: Low Enemy HQ Durability
NumPad5: Change Money By 50
NumPad6: Change Ruby By 50
NumPad7: Instant First Crush Tension Gauge
NumPad8: Infinite Time On First Crush
Money/Ruby: On map click visit your HQ. Then press hotkey or make your changes. You must leave and enter the HQ again to see it has changed.