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: Game Speed

Trainer Options:
NumPad1: Unlimited Health
NumPad2: Game Speed

Editor Options:
Progression: Current Score
Progression: Current Conduct
Timers: Main Mission Timer Modifier
Timers: Emergency Mission Timer Modifier

Notes:

EDITOR OPTIONS

For Progression, press ESC to pause the game, then press ESC to unpause the game.  You will see the values fill in and then can be modified.  For Conduct, do not use values larger than 100.

For Timers, once the mission type begins, a value will fill in.  Use a large value like 1000000 to freeze the timer, use a small value like 0 to end the mission.

Unlimited Health:
Toggle on to try and reset health to 100%.  To do this, press ESC to pause the game, then ESC to unpause.

Game Speed:
Toggle on to speed up the game.