It's on my to-do list. :happy:
As an aside, I've just finished tweaking some characters. I've given King Stephen some more traits (so now he has brave, trusting, deceitful, arbitrary and misguided_warrior) and changed his name to its correct French form, Étienne. I also did a 'replaceall' in the Frankish character file from Etienne > Étienne. The names Étienne and Stephen are linked for the English culture by the way, so if there is ever an English king named Stephen then he will be correctly titled Stephen II.
I've also moved Geoffrey Plantagenet and his two remaining Frankish children to the English file and changed their culture accordingly. Geoffrey's other children (such as Henry II) were already English, so it seemed strange to have half English and half Frankish -- presumably we'd like all of his children and their heirs to be English as opposed to Frankish or Norman (as his wife is) so I thought this the most sensible option. Oh, and I gave him a claim on the kingdom of England when he marries Matilda -- this is an example of balance, as normally Geoffrey would not be able to claim England from Stephen as he doesn't have a claim, though his wife does and his son will after she is dead. By giving Geoffrey a claim when he marries Matilda it means he can fight Stephen in his wife and son's name (which is entirely historical) and potentially bring about the Plantagenets. As far as I know this is the closest CK II can replicate historical events, as I do not think it is possible to defeat someone and force them to change their heir.
So, if you're feeling lucky you can try the Anarchy scenario and see if you can overthrow Stephen... or will you crush the Angevins? :laugh: