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: God Mode
     NumPad3: Unlimited Ammo
     NumPad4: No Reload
     NumPad5: Super Zoom
     NumPad6: Unlimited Strengh
     NumPad7: Unlimited Vitality
     NumPad8: Unlimited Health 
     NumPad9: Unlimited Stamina
     Multiply: Unlimited Hydration
     Add: Unlimited Fullness
     Subtract: Unlimited Rest
     Decimal: Max Temprature
     Divide: Free Crafting
     F1: Unlimited Inventory Edibles and Consumables 
     F2: Unlimited Grenades and Throwables
     F3: Unlimited Flashlights Battery
     F4: Unlimited Nightvision Battery
     F5: Unlimited Tarps
     F6: Unlimited Sticks
     F7: Super Walk Speed
     F8: Super Jump 
     F9: Super Swim Speed
     F10: Super Crouch Speed
     F11: Make Player Invisible 

# Kelvin 
     NumPad2: Make Kelvin Invulnerable 

# Enemies 
     F12: Disable AI
     F13: Easy Kills
     F14: Freeze Enemy Position

# Teleport 
     F15: Save Position Slot 1
     F16: Save Position Slot 2
     F17: Save Position Slot 3
     F18: Save Position Slot 4
     F19: Save Position Slot 5
     F20: Restore Position Slot 1
     F21: Restore Position Slot 2
     F22: Restore Position Slot 3
     F23: Restore Position Slot 4
     F24: Restore Position Slot 5

# Game 
     NumLock: Game Speed

Editor Options

# Player 
     Inventory
     Enable Console 
     Game Time Multiplier 

Notes

Free Crafting:
Enable it and set up your prefered structure then destroy it now you will be able to build anything for free without the required ingridients.

Inventory:
Open then inventory and mouse over the item you want to edit then value will appear and you can edit it,just make sure not to freeze this.

Enable Console :
Set to 0 to Enable in game console then press F1 to bring up the console.

Kudos goes to 0x90.

Game Time Multiplier :
Set to zero to freeze the game time or set to higher value to speed up the time or to negative to reverse the time.