Place the texture folder in the same folder as the respective aircraft variant, then add the following to your aircraft cfg. Do not forget to
increment the X in FLTSIM

[fltsim.X]
title=TFDi Design MD-11 PAX GE CityBird OO-CTB
sim=MD11TFDi_CF6-80C2D1F
model=PAXGE
panel=
sound=
texture=OO-CTB
atc_id=OO-CTB
atc_flight_number=
atc_airline=CTB
atc_parking_codes=CTB
atc_parking_types=
atc_heavy=1
ui_manufacturer=McDonnell Douglas
ui_type=MD-11
ui_variation=PAX GE
description=TFDi Design MD-11 \nLivery by Hangar226
ui_typerole=TFDi Design
ui_createdby=TFDi Design