Restore Temporal Rule

government_has_flag = government_is_theocracy
is_landed = yes
has_pam_dlc_trigger = yes

As written in game/common/decisions/dlc_decisions/pam/pam_decisions.txt.

trigger_if = {
	limit = {
		top_liege = this
		is_ai = no
	}
	prestige_level >= high_prestige_level
}
trigger_if = {
	limit = {
		top_liege = this
		is_ai = no
	}
	custom_tooltip = {
		text = all_powerful_vassals_required_tt
		any_powerful_vassal = {
			count = all
			opinion = {
				target = root
				value >= 50
			}
		}
	}
}
trigger_if = {
	limit = {
		is_ai = yes
	}
	calc_true_if = {
		amount >= 2
		prestige_level >= high_prestige_level
		has_trait = cynical
		culture = {
			has_cultural_pillar = ethos_bureaucratic
		}
		culture = {
			has_cultural_pillar = ethos_courtly
		}
		culture = {
			has_cultural_pillar = ethos_stoic
		}
		culture = {
			has_cultural_tradition = tradition_legalistic
		}
		has_realm_law = church_authority_3
		capital_county = {
			development_level > medium_development_level
		}
		dynasty ?= {
			has_dynasty_perk = law_legacy_5
		}
		dynasty ?= {
			has_dynasty_perk = erudition_legacy_5
		}
		NOT = {
			has_trait = zealous
		}
		NOT = {
			rite = {
				rite_has_doctrine = doctrine_theocracy_temporal
			}
		}
	}
}
is_landed = yes
custom_description = {
	text = is_not_head_of_faith_tt
	subject = root
	NOT = {
		any_held_title = {
			is_head_of_faith = yes
		}
	}
}
custom_description = {
	text = is_not_head_of_rite_tt
	subject = root
	rite.head_of_rite != root
}
custom_tooltip = {
	text = is_antipope_tt
	pam_is_antipope_trigger = no
}
is_at_war = no

As written in game/common/decisions/dlc_decisions/pam/pam_decisions.txt.

if = {
	limit = {
		government_has_flag = government_is_ecclesiastical
	}
	if = {
		limit = {
			exists = faith.religious_head
			can_set_relation_rival_trigger = {
				CHARACTER = faith.religious_head
			}
		}
		progress_towards_rival_effect = {
			REASON = rival_refuted_faith
			CHARACTER = faith.religious_head
			OPINION = default_rival_opinion
		}
	}
	else_if = {
		limit = {
			exists = rite.head_of_rite
			can_set_relation_rival_trigger = {
				CHARACTER = rite.head_of_rite
			}
		}
		progress_towards_rival_effect = {
			REASON = rival_refuted_faith
			CHARACTER = rite.head_of_rite
			OPINION = default_rival_opinion
		}
	}
	if = {
		limit = {
			exists = clerical_elector_title
		}
		destroy_title = clerical_elector_title
		remove_character_flag = cardinal_flag
	}
	create_title_and_vassal_change = {
		type = granted
		save_scope_as = change
		add_claim_on_loss = no
	}
	every_held_title = {
		limit = {
			has_clerical_region = yes
		}
		change_title_holder_include_vassals = {
			holder = current_heir
			change = scope:change
		}
	}
	resolve_title_and_vassal_change = scope:change
}
trigger_event = major_decisions.0001
convert_whole_realm_to_feudalism_effect = yes
add_piety_level = -1
hidden_effect = {
	save_scope_as = actor
	every_vassal = {
		trigger_event = {
			id = major_decisions.0002
			days = 3
		}
	}
}

As written in game/common/decisions/dlc_decisions/pam/pam_decisions.txt.