Has anyone figured out how to edit the CS 757X navigation files to insert VHHX airport ,and it's SIDs and STARS? This is for another company 767

Go here,http://planepath.com/
And download appl terminal procedures,and extract the VHHX file,and insert into Your drive\Program Files \Microsoft Games\Microsoft Flight Simulator X\767-300 another company\navdata.
For another company wpNavAPT.txt
insert after VHHH.
************************

HONG KONG KAI TAK VHHX13 10930136 22.321667 114.196667111.9008800015
HONG KONG KAI TAK VHHX31 10930316 22.305500 114.214500109.9031600015

Airports.dat file
Insert after VHHH.
*************************
VHHX 22.316667 114.203333


Next ...
Open up this file : WpNavApt.txt
Insert After VHHH

HONG KONG KAI TAK       VHHX13 10930136 22.321667 114.196667111.9008800015
HONG KONG KAI TAK       VHHX31 10930316 22.305500 114.214500109.9031600015
This is the entry in the Captain Sim airport file for VHHH,
28;VHHH;22.308889;113.914722
What is the 28; in front of the  VHHX entry for?
Thanks from Jim!!