Is there any way of adding descriptions for a provincial campaign under BI
without overwriting BARBARIAN_INVASION descriptions?

have tried using format
{BRITAIN_INVASION_TITLE}BRITAIN INVASION by Wilddog & Makanyane
{BRITAIN_INVASION_ALEMANNI_TITLE}The Alemanni Tribes
{BRITAIN_INVASION_ALEMANNI_DESCR}Difficulty Factor: ESTIMATED MODERATE\n\nMarch from the......

at the end of campaign_descriptions.txt in BI/data/text and RTW/data/text and (as that didn't work) moving CD.txt into campaign folder but all that gets picked up so far is the BRITAIN_INVASION title in the provincial campaign selections screen. I can't get anything to change in the factions selection screen.

Was hoping to create provincial campaign that didn't mess up BI installation / descriptions!