Activating this trainer:
Press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey. All hotkeys can be changed on the trainer.
NumPad1: Change Credits By 1000000
NumPad2: Change Administration Capacity By 1000
NumPad3: Unlimited Ship Movement
NumPad4: Infinite Ship Health (Non-Combat)
NumPad5: Change Benevolent Points 50000
NumPad6: Change Pragmatic Points 50000
NumPad7: Change Malevolent Points 50000
NumPad8: Fast Citizen Available For Training
NumPad9: Decrease Turns Of Selected Research
Credits / Administration Capcity / Points: Game stores the values as: value * 1000
If you put 1000 into modify value on the trainer GUI it changes your value ingame by 1.
Ship Movement / Health: While active the current selected ship has unlimited movement / health. Deactivate when not needed especially before ending turn. Values get updated when you move your ship
Fast Citizen Available For Training: Press hotkey and end your turn and you will have a citizen available for training. Repeat to get more.
Decrease Turns Of Selected Research: Open your research screen then click on a research on the left side first. Press hotkey, close and open the research screen again and you will see the turns of the research has been decreased. You cannot decrease it further.
Unlock more trainer options including updates from here - Galactic Civilizations 3 Trainer