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.

Promo Options:
NumPad1: Unlimited Upgrade Points

Trainer Options:
NumPad1: Unlimited Upgrade Points

Editor Options:
Resources: Player Gold
Player Stats: Player Health
Player Stats: Player Hunger
Player Stats: Player Thirst
Player Stats: Player Stamina
Torch: Torch Remaining

Notes:

EDITOR OPTIONS

For Editor options, enter the game, then note the values and change them and press TAB to lock them into place.  You will have to equip a torch and light it to see the value.  For health and stamina, you can use large numbers to basically have unlimited.

Unlimited Upgrade Points:
Once you have enough points to purchase skill upgrades, toggle this on while at the upgrades screen, and if you have enough points to purchase an upgrade, when you purchase it, the points total will remain the same.  Likely if you have 2 points to begin with, you can unlock everything one after the other while this is on.