Activating this trainer
If not state otherwise below, press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey. All hotkeys can be changed on the trainer.

Trainer Options
# Player 
     NumPad1: Immortal Mode
     NumPad2: Unlimited Health
     NumPad3: Unlimited Stamina
     NumPad4: No Reload
     NumPad5: No Recoil
     NumPad6: No Hunger
     NumPad7: Zero Weight
     NumPad8: Unlimited Stat Points
     NumPad9: Unlimited Technology Points
     Multiply: Unlock All Technology Recipes 
     Add: Unlimited EXP
     Subtract: Refresh Inventory Editor
     Decimal: Prevent Ammo and Item Depletion 
     Divide: Free Build
     F1: Instant Build
     F2: Free Craft
     F3: Instant Craft
     F4: Freeze Time
     F5: Decrease Time
     F6: Advance Time
     F7: No Frostbite 
     F8: Decrease Body Temperature 
     F9: Increase Body Temperature 
     F10: Fly
     F11: No Clip
     F12: Hover Player Higher
     F13: Hover Player Lower
     F14: Increase Player Speed
     F15: Decrease Player Speed
     F16: Set Normal Player Speed
     F17: Increase Jump Height
     F18: Decrease Jump Height
     F19: Set Normal Jump Height
     F20: Decrease Gravity
     F21: Increase Gravity
     F22: Set Normal Gravity

# Enemy  
     F23: Decrease Enemy Speed
     F24: Increase Enemy Speed
     NumLock: Freeze Enemies
     Scroll: Set Normal Enemy Speed

# Teleport 
     LeftShift: Save Position Slot 1
     RightShift: Save Position Slot 2
     LeftCtrl: Save Position Slot 3
     RightCtrl: Save Position Slot 4
     LeftAlt: Save Position Slot 5
     RightAlt: Restore Position Slot 1
     BrowserBack: Restore Position Slot 2
     BrowserForward: Restore Position Slot 3
     BrowserRefresh: Restore Position Slot 4
     BrowserStop: Restore Position Slot 5

# Game  
     BrowserSearch: Game Speed

Editor Options
# Player 
     EXP
     EXP Multiplier
     Level
     Stat Points

# Inventory 
     Slot 1 - Slot 50

Notes

Zero Weight:
Enable this at main menu before loading your save game.

Prevent Ammo and Item Depletion :
Make sure to disable this before acquiring crafts.