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
NumPad5: Game Speed

Trainer Options
# Player 
     NumPad1: Unlimited Health

# Attacks 
     NumPad2: No Skills Cooldowns
     NumPad3: Unlimited Mana
     NumPad4: Skills Require No Mana

# Game Speed 
     NumPad5: Game Speed

Editor Options
# Currency 
     Current Gold

# Progression 
     Current XP
     Current Legacy XP

# Timer 
     Mission Timer Value

# Heroes 
     Current Hero Shards

Notes
EDITOR OPTIONS

For Currency or Heroes, press I to open the inventory while in a battle/mission and note the gold or shards.  Edit the value then press TAB to lock it in.

For Progression, press I to open the inventory then make sure Open Stat Details icon is active which shows your XP on the left.  Edit the value then press TAB to lock it in.

For Timer, if a mission has a timer in the upper right corner, the value shown in the editor can give you more time or less if you write a larger or smaller number and then press TAB to set it.

Game Speed:
Toggle on for faster Game Speed