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
NumPad2: Unlimited Mana
NumPad4: Game Speed
Player Progression: Next Level XP

Trainer Options
# Player 
     NumPad1: Unlimited Health
     NumPad2: Unlimited Mana

# Potions 
     NumPad3: Unlimited Health Potions

# Gameplay 
     NumPad4: Game Speed

Editor Options
# Currency 
     Current Gold

# Player Progression 
     Current Level
     Current XP
     Next Level XP
     Current Skill Points
     Current Passive Points

Notes
EDITOR OPTIONS

For the editor items, click on a window or open a pane that shows the relevant information and it will fill into the editor window.  Change the value, then press TAB to lock it in.

Unlimited Mana:
Toggle on for unlimited mana.