Instructions:
1. Open wpNacAPT.txt in FMCWP (FSX: in NavData) of your FS installation directory with Notepad
2. Insert the following lines:
Hong Kong Intl (old) VHHX13 10930136 22.324850 114.193176000.0013600000
Hong Kong Intl (old) VHHX31 10930316 22.304401 114.216064000.0031600000
3. Save and close
4. Open airports.dat in the same directory with Notepad
5. Insert the following line:
VHHX 22.324850 114.193176
6. Save and close
7. Save the downloaded SID/STAR into PMDG\SIDSTARS\