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: Infinite Amber
NumPad3: Unlimited Items
NumPad4: Stealth Mode
NumPad5: Disable AI
NumPad6: Change Skill Points By 500
NumPad7: Change Pure Quartztes By 5
NumPad8: Zero Kill Counts
NumPad9: Zero Alert Counts
NumPad0: Perfect Mission Time
Unlimited Items: While active all items and materials are unlimited. You may need to have collected/crafted the item/material once.
Disable AI: While active the AI is disabled. They don't speech, walk, detect you. Instead they're frozen to place. This could break some game scripts if an enemy is supposed to talk/walk so use it carefully.
Stealth Mode: While active enemies will not detect you.
Skill Points / Pure Quartztes: Press hotkey to add more. You can see it has changed if you press TAB ingame and switch to skill tab.
Zero Kill / Alert Counts: While active every kill / alert will not count towards your mission statistics. If your counter is bigger than 0 you will need to kill/alert someone before it will be reset.