Things have changed heavily and the damn game forcing me to play a tutorial now and deleted my previous save (congrats). The trainer has been updated, gem option has been removed as due to the fresh start I haven't played till I got gems again. The people option has been removed (seems like it isn't a problem anymore in this game?!) instead instant build has been added.
I've also found a way to increase the population but it was unstable and crashed very often although all cards have been unlocked. I'll better wait for full release before experimenting with trainer options.