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: No Clip
     NumPad2: Increase Player Speed
     NumPad3: Decrease Player Speed
     NumPad4: Set Normal Player Speed

# NPC  
     NumPad5: Decrease NPC Speed
     NumPad6: Increase NPC Speed
     NumPad7: Freeze NPC 
     NumPad8: Set Normal NPC Speed

# Teleport 
     NumPad9: Save Position Slot 1
     Multiply: Save Position Slot 2
     Add: Save Position Slot 3
     Subtract: Save Position Slot 4
     Decimal: Save Position Slot 5
     Divide: Restore Position Slot 1
     F1: Restore Position Slot 2
     F2: Restore Position Slot 3
     F3: Restore Position Slot 4
     F4: Restore Position Slot 5

# Game  
     F5: Game Speed

Notes

No Clip:
Enable this only when you're in the air.