Colonization Cheat Codes
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Hold down ALT and type WIN to bring up a cheat menu.

SHIFT + 1	Finishes all buildings in a city
SHIFT + 4	1,000 cash to your treasury
SHIFT + 5	100 of selected good
SHIFT + 6	Minus 100 of selected good
SHIFT + T 	New colonist added in selected city
SHIFT + S	Specialize selected colonist to the task he is doing

You can go into the settlement view and hit the spacebar to do one turn of work
without losing any time.