Activating this trainer:
If not state otherwise below, press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey. All hotkeys can be changed on the trainer.

Promo Options:
NumPad2: Instant Construct Buildings

Trainer Options:
NumPad1: Super Empire
NumPad2: Instant Construct Buildings
NumPad3: Instant Produce Units
NumPad4: Fast Nature Power Cooldowns
NumPad5: Instant Produce Heroes
NumPad6: Mega XP Gain
NumPad7: Game Speed

Editor Options:
Resources: Gold
Resources: Wood
Resources: Population Limit
Selected Unit: Max Health
Selected Unit: Current Health
Selected Unit: Max Mana
Selected Unit: Current Mana

Notes:

EDITOR OPTIONS

For Resources options, note the values, change value, then press TAB to lock the value in.

For Selected Unit option, click a unit, note the values ,change the value, then press TAB to lock the value in.  Values above 25000 are likely not allowed.

Super Empire: Toggle on and you have massive wood, gold, and the max available population limit.

Instant Construct Buildings: Toggle on and buildings are constructed instantly.

Instant Produce Units: Toggle on and normal units are constructed instantly.

Fast Nature Power Cooldowns: Toggle on and Nature Powers are ready to use over and over instantly.

Instant Produce Heroes: Toggle on and your Heroes are constructed instantly.

Mega XP Gain: Toggle on and units that gain XP gain 2000 XP when they earn any XP.

Game Speed: Slide the slider to affect the speed of the game.