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:
NumPad6: Freeze Police Arrival Timer

Trainer Options:
NumPad1: Unlimited Health
NumPad2: Unlimited Stamina
NumPad3: Unlimited Weight
NumPad4: Unlimited Ammo
NumPad5: No Reload
NumPad6: Freeze Police Arrival Timer
NumPad7: Reset Police Wanted Status Stars
NumPad8: Duplicate Dropped Items / Unlimited Use/Consume
NumPad9: Unlimited Break In Item Usages
Multiply: Game Speed

Editor Options:
Currency: Player Money
Player Progression: Player Upgrades Points

Notes:

EDITOR OPTIONS

Enter the inventory or upgrades screen to see the totals fill in the editor.  Modify the value, then press TAB to lock it in.

Unlimited Health:
Toggle on to try and keep at 100%.

Unlimited Stamina:
Toggle on to try and keep at 100%.

Unlimited Weight:
Toggle on, then drop or pick something up, and the total weight you are carrying is reset to zero while this is active.

Unlimited Ammo:
Toggle on and most weapons when you fire them, your ammo count will not drop.  Best to have this on if you have No Reload option active as well.

No Reload:
Toggle on and most weapons will not need reloading and can fire constantly.  Note, however, that your ammo count WILL decrease.

Freeze Police Arrival Timer:
Toggle on and some timers that show when the police will arrive can be frozen.

Reset Police Wanted Status Stars:
Toggle on and this will reset the current Wanted level to zero.  In many cases if you do not have your firearm out and lose sight of the police for a quick second, they will then ignore you.

Duplicate Dropped Items / Unlimited Use/Consume:
USE WISELY!  This option can affect MANY THINGS, so only use as directed and for specific things.  Toggle on and when you DROP an item, the item remains in your inventory BUT you can also pick up the copy you dropped.  Also, can be used when you CONSUME an item to prevent the count from dropping, or you can USE an item without the item decreasing.  However, it's best to TOGGLE ON, use or drop the item, then TOGGLE BACK OFF when done.  DO NOT LEAVE THIS ON if not needed.  If left on between levels, the game may appear to be paused.  TOGGLE BACK OFF.

Unlimited Break In Item Usages:
Toggle on and while active, when you use an item to break into something or smash a window, the item can be used over and over without penalty

Game Speed:
Toggle on to speed up the game speed.