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: Game Speed
     NumPad2: Invulnerable 
     NumPad3: Infinite Health
     NumPad4: Super Damage
     NumPad5: Ghost Mode
     NumPad6: Fly
     NumPad7: No Clip While Flying
     NumPad8: Float Player Higher While Flying
     NumPad9: Float Player Lower While Flying
     Multiply: Change Player Speed
     Add: Change Player Jump
     Separator: Change Player Gravity
     Subtract: Change Player Fly Speed
     Decimal: Save Position Slot 1
     Divide: Save Position Slot 2
     F1: Save Position Slot 3
     F2: Save Position Slot 4
     F3: Save Position Slot 5
     F4: Restore Position Slot 1
     F5: Restore Position Slot 2
     F6: Restore Position Slot 3
     F7: Restore Position Slot 4
     F8: Restore Position Slot 5
     F9: Change NPC Speed
     F10: Freeze NPC
     F11: Invulnerable Vehicle 
     F12: Unlimited Vehicle Durability
     F13: Unlimited Nitro
     F14: Super Damage Veichles
     F15: Unlimited Painkillers
     F16: Unlimited EXP
     F17: Infinite Money
     F18: Unlimited Sandwich Boards
     F19: Unlimited Skill Points 
     F20: EXP Multiplier
     F21: Unlimited Adrenaline

Editor Options

# Player 
     Vehicle Damage Multiplier
     Damage Multiplier
     EXP
     Money
     Sandwich Boards
     Skill Points

Notes

Ghost Mode:
It won't work while you are in the vehicle and only works when you are in a mission where you have to sneak into somewhere.