Press F12 to bring up the cheat prompt. Then type in code and press enter. Pressing up after hitting enter re-enters the last code entered. All these cheats add to your national resource stockpile.

Effect	Password
+10 morale to naval units	event 200
+10 organization to naval units	event 201
+2 fire value for infantry	event 112
100 amunition	ammunition
100 artillery	artillery
100 cattle	cattle
100 cement	cement
100 coal	coal
100 coffee	coffee
100 cotton	cotton
100 dye	dye
100 explosives	explosives
100 fabric	fabric
100 fertilizer	fertilizer
100 fruit	fruit
100 fuel	fuel
100 furniture	furniture
100 glass	glass
100 grain	grain
100 iron	iron
100 liquor	liquor
100 lumber	lumber
100 oil	oil
100 opium	opium
100 steel	steel
100 sulfur	sulfur
100 tea	tea
100 timber	timber
100 tobacco	tobacco
100 wine	wine
100 wool	wool
Allows Commerce Raiders	event 214
Allows Corvettes	event 212
Allows Cruisers, disable Frigate	event 217
Allows defense against gas attacks	event 110
Allows Destroyers	event 219
Allows Dreadnoughts	event 220
Allows gas attacks	event 109
Allows Heavy Cruisers	event 221
Allows Ironclads	event 215
Allows Monitors	event 216
Allows steamer transports (replace clipper)	event 213
Allows Torpedo Boats	event 218
Annex Texas	event 14206
Clausewitzian: +5 organization to land units	event 101
Converts slaves into laborers	event 16301
Destroys a random factory, where XYZ is the tag of the owner of the factory	event 24025 XYZ
Free cavalry division, -12 Manpower	event 23019
Free dragoon division, -12 Manpower	event 23018
Free infantry division, -10 Manpower	event 23017
Get 8 research points	event 24008
Grants 100 canned food	canned_food
Grants 100 luxury furniture	luxury_furniture
Grants 100 small arms	small_arms
Grants 100 tropical wood	tropical_wood
Grants you a random technology you do not have yet	event 24037
Increases Prestige by 10, improves relations with three random nearby nations by 25	event 24020
Increases the output of a Precious Metal RGO by 10	event 24013
Jominian: +20 morale to all land units	event 100
Make Mexico a satellite	event 14203
Quebec becomes satellite	event 14180
Reduce militancy and consciousness by 7 for all population groups	event 15000
Reduces your whole nation's militancy by 2	event 22013 (note: requires Bureucracy invention)
Triggers a Communist revolution - Country becomes a Proletarian Dictatorship	event 23100
Triggers a Conservative revolution - Country becomes a Presidential Dictatorship	event 23103
Triggers a Liberal revolution - Country becomes a Democracy	event 23101
Triggers a Reactionary revolution - Country becomes a Monarchy	event 23102
Upgrades the rail level of a random province you own by 1	event 24012