Take the RKSI_ADE_OBJ.BGL file and place this file into: Flight Simulator X/Scenery/Global/scenery folder. Take the RKSI_ADE_RS.BGL file and the RKSI_ADE_CVX.BGL file and place both of these files into: Flight Simulator X/Addon Scenery/scenery folder. There are 3 BGL files: RKSI_ADE_RS.BGL, RKSI_ADE_CVX.BGL and a RKSI_ADE_OBJ.BGL file. Aerial view of Incheon International Airport.