Using the runway exclusion in makerunways for a specific airport in FSUIPC Support Pete Dowson Modules Posted June 12 · Report reply On 6/10/2020 at 7:46 AM, Pete Dowson said: If they no longer exist, but are present in the default airport data, then they need excluding in an add-on scenery file. Then MakeRunways will no longer list them. How is this exclusion done, as this is where I believe the problem lies; in the default scenery. How does one create and exclusion in an add-on? Thanks Pete.