Activating this trainer:

Press F1 at main menu.

Listen for 'Trainer Activated'.

Press desired hotkey. All hotkeys can be changed on the trainer.

Trainer Options:

Numpad 1: Set Time Remaining 10 minutes

Numpad 2: Kill Current Timer Displayed

Numpad 3: Skill Cooldowns Don't Matter

Numpad 4: No Police Damage Inflicted

Numpad 5: No Rebel Damage Inflicted

Notes:

Numpad 1: Set Time Remaining 10 minutes - while the mission is going, there is a timer at the top.  Sometimes the timer benefits the rebels, sometimes it benefits the police.  When you press this option, the timer currently displayed is set to 10 minutes.

Numpad 2: Kill Current Timer Displayed - while the mission is going, there is a timer at the top.  Sometimes the timer benefits the rebels, sometimes it benefits the police.  When you press this option, the timer currently displayed ends and likely the mission ends, benefiting whichever team the timer is set for.

Numpad 3: Skill Cooldowns Don't Matter - try to use a skill (such as ARREST or MOLOTOV COCKTAIL) at least once, then toggle this on and you can use skills even if the cooldown is not reset.

Numpad 4: No Police Damage Inflicted - you need to have inflicted some damage using the police at least once.  This option is best used near the end of the mission.  Toggle on and the damage is set to zero.

Numpad 5: No Rebel Damage Inflicted - you need to have inflicted some damage using the Rebel at least once.  This option is best used near the end of the mission.  Toggle on and the damage is set to zero.