This is mostly for the people I've been helping lately (SAS, Nex, Slayer), and so that I don't have to say this 100 times lol.
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Units
A = Archer, Swordsman, Ram, Monk, Trade Cart, Knight, Fishing ship, Villager, UU

S = Skirmisher, Spearman, Mangonal, Missionary, Scout, Galley, Treb

D = Cavalry Archer, Eagle Warrior, Scorpion, Camel, Fire Ship, Petard

F = Hand Cannoneer, Huskarl, Bombard Cannon, Demo Ship

Z = Cannon Ship, X = Turtle Ship, C = Longboat, Q = Transport Ship, V = Trade Cog
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Create Buildings

A+A = house
A+S = Barracks
A+D = Archery Range
A+F = Stable
A+G = Siege Workshop
A+H = Dock
A+J = Monastery
A+L = Town Center (Space to select and go to)
A+Q = Farm
A+W = Blacksmith
A+Z = Lumber camp
A+X = Mill
A+C = Mining Camp
A+M = Market
A+Y = Castle
A+U = Palisade Wall
A+I = Stone Wall
A+O = Outpost
A+P = Tower
A+] = Bombard Tower

TAB = Idle Vil
~/` = Last Notification
F1 = Idle Military
F11 = Flare

That's all. ^_^