For those using the new QUESTIONABLE SOURCE version of the game, please make sure you also download the QUESTIONABLE HOTFIX 1 so that the trainer works.
Thank you for mentioning this,
Downloaded "questionable" hotfix 1.
It corrected the trainer not being activated.
Trainer activated at main menu but now the problem is the same as those above that the trainer options are not working in game per instructions to press hotkey when in smartphone.