Activating this trainer:
Press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey.All hotkeys can be changed on the trainer.

Trainer Options:
NumPad1: Infinite Health
NumPad2: One Hit Kills
NumPad3: Unlimited Items
NumPad4: Unlimited Tool Durability
NumPad5: Change Quantity Of Selected Item By 50
NumPad6: Infinite Fuel
NumPad7: Unlimited Ammo
NumPad8: Instant Research
NumPad9: Super Speed

Editor Options:
Misc: Selected Item Quantity
Misc: Unlimited Items Value

Notes:
This trainer was made for an opt-in version in Steam. Right click at game in steam library, choose properties.
Go to  'beta' tab and select 0.16.x experimental.

Selected Item: Open your inventory, click on an item to pick it up and drop it. Then edit the amount of press hotkey.

Unlimited Items: You can define the amount items will be set to on the editor.

Infinite Fuel: While active your fuel will not decrease.

Unlimited Ammo: While active your ammo will not decrease.