the trainer writes to specific addresses and specific addresses only if the instructions are followed. That is why we have specific instructions on how to use the options and its also why we ask you to pause and also why the options shut themselves off after a few seconds. I have no way to isolate further or change the trainer to isolate the trainer to write to specific things any more than it already does. If the game coding uses the multipliers or some other thing that the trainer writes to on ALL of the countries, then that is a possible reason, although I have tried my best to make the trainer write to specifically the units or country etc. data.
I've tried various things with the production option and i'm pretty sure I don't understand it either. It may not be a production option and might actually be for "training" but I haven't tried that since the more I mess with the trainer, the more of the options seem to cause things to crash or interfere with being able to play the game without relying heavily on trainer options once you start using it (Mega Resources basically prevents you from doing anything to the structures in that province since it overloads it with 100+ civilian factories that you can't do anything to without crashing the game).
no, and the reason is for what I stated, people will accidentally leave it on or mouse over things while it is activated which will FUBAR their game or cause problems and then they will blame the trainer for screwing up their 200 turn progress or whatever.