I think you misunderstand how the trainer works, amigo.
You press the 'Instant build key', click the buildings you wish to build (Which then display a '1 turn to completion' icon), turn the trainer off, end the turn, and the building is finished the next turn.
There are no options in the trainer that require you to leave the trainer enabled whilst the AI does its business.
But if having lots of cash is the only cheat you actually want, then sure, Cheat Engine will do the job just fine
people like you frustrate me. mainly because you DONT READ the instructions, and GIVE BAD INFORMATION to other users based on your inability to use the program correctly.
the game actively searches for hacks and changes to it's code. if you turn options on and then end a turn, the game is going to detect the trainer and crash. this is why the instructions tell you how to turn the options off.
after you end the turn, you press numpad / again to turn the trainer back on and you can use the options again.
it's really simple. sadly some people just cannot comprehend this-
Let me change that for you.
the issue is that the developers are putting in code to actively check for cheats, code manipulation, and the like. you can blame the fact that there is multiplayer usage of the games and that this is there way to try and prevent cheating online, which we totally understand. however, the single player users get hamstrung with these same protections when trying to use mods and trainers on their games.