How to make scasm invisible runway

Need help with creating a scasm invisible runway for runway lights in FSX

Hello guys.

I am making the Guam airport for FSX, all things are going very well, exept the runway lights.
Now i'm reading the scasm topics, but i don't know how to do the scasm invisible runway
can someone help me step by step what i have to do, to make a invisible runway over a costum runway?
i struggle with this for months, and now i can't finish my project without runway lights .:confused:
I need help with this issue.


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