FSX ASM Tweak Document for Beginners

Dear Friends,

I need to create custom blinking strobe runway end identifier lights for FSX similar available in FSX default airports.
I am looking for any document covering entire procedure to create custom BGL Light using ASM tweak (with example) for beginners.

There are very good document, information's available here but not covering entire procedure. Aside taking reference of PAPI light and Wiki documents, I have tried to create REIL using Gmax 2004 with custom asm tweak but it not working.

Thanks for taking the time to read.

Take Care,,, Anuj