New Crusade/Jihad immediately after a crusade/Jihad!

New Crusade/Jihad immediately after a crusade/Jihad!

Its known to all of us that:
While a crusade is in progress or immediately after a crusade you are not able to request another.

The Crusade-Disabling period between two Crusades takes many turns.
It seems it's possible to modify this. Its looks like not game hard coded, but I am a medium-experience modifier of RTW & M2TW and I am not sure if the Crusade/Jihad preferences file is located really in \SEGA\Medieval II Total War\data folder.

I found something in descr_campaign_db.xml file:
<crusades>
<required_jihad_piety int="4"/>
<max_disband_progress float="20.0"/>
<near_target_no_disband_distance float="4.0"/>
<disband_progress_window float="3"/>
<crusade_called_start_turn float="20"/>
<jihad_called_start_turn float="20"/>
<movement_points_modifier float="2.0"/>
</crusades>

But I am not sure if this is the correct file for Crusade/Jihad period modifying.
Any idea?