As the title suggest, I am wondering if there is any way to make the Papal States playable?

I have tried the traditional way, Open up the descr_strat.txt and move the Papal States from 'non-playable' to 'playable'. I have edited the desc_strat.txt file for the M2TW imperial campaign and for the desc_strat.txt file in the 'tlr' mods folder (x:\Program Files (x86)\Steam\steamapps\common\Medieval II Total War\mods\tlr\data\world\maps\campaign\imperial_campaign). However, I still cannot see the Papal States faction as playable.

Anybody have any other ideas?