The issues I'm having with the trainer are as follows:
a. it kinda breaks the second chapter of the game and prevents you from getting the handgun at the appropriate scene.
b. Most options do not work upon request; ie: green gel points, none of NumPad 4-7, I don't know about the anything dealing with ammo cause couldn't get the gun.
c. The only ones that I know for sure work are health, stamina, and easy kills.
Did you read the readme/instructions?
For the options you mentioned not working you need at least 1 item of it already in your inventory or need to be careful where/when to use this option.