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.
NumPad1: Low Gravity
NumPad2: Super Sprinting Speed
NumPad3: Super Jump
While active you can jump higher and fall slower. You can customize the value after trainer activation. The closer the value is to zero, the less gravity you have.