Hit ~ Key then input the following codes.

Effect	Code
cash	5000 gold
Change your characters culture	culture [enter culture here]
Change your religion	religon [enter sect here]
clears the console screen	clear
kills the character associated with the ID put in.	kill (character ID)
Lets you marry anyone including close family	marry_anyone
Lets You Set Any Law with no wait or vote	allow_laws
piety	5000 piety
prestige	5000 prestige
prints the message "No help for you!", no other (known) effect	help