One of the scripts inside the rpa archives checks for a file in game/modules called developer.rpym. If this file is not present it disables the console and also the Shift+O shortcut.
You could create an empty developer.rpym file in game/modules and add a simple script to the game folder with following content:
Code:
init 999 python:
config.developer = True
config.console = True
(Or download and extract the attached file)
Be warned, only use the console inside the game, don't open it while you're in the book or any other menu, because the game will crash if you try to close the other menu...