Activating this trainer:
Press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey.All hotkeys can be changed on the trainer.

Trainer Options:
NumPad1: Toggle Developer Hotkeys
NumPad2: Change Money By 25000
NumPad3: Change Perk Points Of Selected Perk By 5
NumPad4: Super Speed
NumPad5: Infinite Paint On Painter

Editor Options:
Misc: Money
Selected Perk: Perk Points

Developer Hotkeys:
F3: All Tools available
F5: Add Cash
F9: 100% Complete current quest
F8: Super Tool Speed
,: Cycle through language (left order)
.: Cycle through language (right order)
Left Alt + Z: Unknown
Left Alt + Y: Fly Camera
Left Alt + J: Unknown

Type the following ingame:
skilll: Max Skills
skillr: Reset Skills
skillm: Medium Skills
skillu: Reset Skill?
lumos: All lamps on
nox: All lamps off
stopsun: Disable day / night
realsun: Set day / night to real time
quicksun: Fast day / night
slowsun: Slow day / night
hideui: Toggles UI
lasthouse: Unknown
fps: Toggle FPS
cavitystrike: Reveal cavities
cut: Unknown
letsgohome: Loads office house
debugplayer: Unknown
makebackup: Makes a backup of your savegame
devrotor: Unknown
randcomment: Unknown
allcomments: Unknown
showallrooms: Unknown
courses: Unknown
achivr: Resets all steam stats and achievements

Notes:
Toggle Developer Hotkeys: When you are ingame and pressing for the first time you will hear a 'Please wait', listen for 'activated' sound. Then press it again and while active you can access the hotkeys above. Some 'hotkeys' have to be typed while ingame just straight away.

Money: Open your tablet and click on store. Press hotkey or change money using the editor. You must buy something before you see it has changed.

Selected Perk: Open your tablet and click on 'Perks', switch to the perk and press hotkey or use editor. Close tablet and open it again to see changes.

Infinite Paint On Painter: While active you don't need to refill your painter.