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
     NumPad2: Infinite Health
     NumPad3: Unlimited Stamina 
     NumPad4: No Radiation
     NumPad5: Max Food
     NumPad6: Max Water
     NumPad7: Unlimited EXP
     NumPad8: No Reload
     NumPad9: Unlimited Grenades & Throwables

# Player Movement 
     Multiply: Increase Player Speed
     Add: Decrease Player Speed
     Subtract: Set Normal Player Speed
     Decimal: Increase Jump Height
     Divide: Decrease Jump Height
     F1: Set Normal Jump Height
     F2: Decrease Gravity
     F3: Increase Gravity
     F4: Set Normal Gravity

# Enemy 
     F5: Easy Kills
     F6: Decrease Enemy Speed
     F7: Increase Enemy Speed
     F8: Freeze Enemies
     F9: Set Normal Enemy Speed

# Teleport 
     F10: Save Position
     F11: Restore Position

# Misc 
     F12: Game Speed

Editor Options

# Backpack & Secure Container 
     Inventory Item 

Notes

For the Inventory Editor be it the Pockets or Backpack & Secure container open your inventory then drag and drop one of the items to another spot and editor will be refreshed with the item's amounts, for each Inventory type you have to do this separately.

Important: Please note that this game is still in early access thus it's kinda buggy and suffers from random crashes issue therefore it has nothing to do with the trainer, I had multiple crashes without the trainer.