Press CTRL + Enter to open the console, enter the following cheat codes and press Enter:
showallmissions - Open all missions
res (resource name) (amount) - Resources. Available names: food, wood, stone, gold, iron, coal, all
For example:
res food 100000 - Get 100,000 food
res all 20000000 - Get 20,000,000 of all resources
freecamera - Remove restrictions on the height of the camera. You can change the angle of the camera by holding Ctrl + mouse wheel and move Ctrl + PageUp or Ctrl + PageDown to change the angle of the camera. The Home button will return the camera's viewing angle to the default.